Education

Biography

Prof. Dr. Abdul Latif is currently the Director of Nexus Engineering, Universiti Sains Malaysia (USM). He was the Dean of School of Chemical Engineering, USM for 2005-2010 and Research Dean, Science Fundamental Platform for 2010-2012. He obtained his BEng, MSc and PhD from the University of Wales, Swansea, UK. Being a Chartered Engineer and a Fellow to The Institution of Chemical Engineers (IChemE), UK, he is frequently being appointed by IChemE to accredit Chemical Engineering Program in Europe, Australia, New Zealand, Sri Lanka, Singapore and Malaysia. He is an internationally renowned researcher and an internationally acclaimed award winning researcher in membrane science and technology. His enthusiasm and dedication towards his research works have been reflected in his achievements in winning numerous scientific invention awards. To-date, a total of 55 personal achievement awards and 69 research product awards have been won. His active participation in scientific research has also been exhibited by being the recipient of multiple research grants in various disciplines sponsored by government and non-government bodies, with a cumulative value of more than RM 30.0 million. His capability in carrying out quality research work of international standard has been further supported by publication of 339 articles in high impact factor international refereed journals, with current cumulative citation number of 10,609 and h-index of 46. As a tenacious educator, he showed dedication towards the supervision of postgraduate students, by successfully graduating 32 PhD and 60 master students. With his persevering attitude, he is veritably a source of inspiration to hundreds of his former students spread throughout the globe.

Research Interest

Environmental engineering, Membrane science and technology

Scientific Activities

Awards

Personal Recognition

Publications

Journals (Total published articles: 339)

1. Bowen, W.R and Ahmad A.L., Pulsed Electrophoretic Filtercake Release In Dead-End Membrane Processes, American Institute of Chemical Engineering Journal (AIChE), 43 (1997) pp 959-970
2. A.L. Ahmad and M.R. Othman, Performance of Electrophoretic Membrane System In Ultrafiltration Of Silica Colloids: Effect of Operating Parameters, IIUM- Engineering Journal, 1 (2000) pp 53-60
3. A.L. Ahmad, T.S. Phang and V.R. Radhakrishnan, Comparison Studies of Control Schemes For pH Contol Processes,Journal of Physical Sciences, 11 (2000) pp 129-140
4. M.R. Othman, H.Mukhtar and A.L. Ahmad, Permeabilities of Pure Gases In Porous Inorganic Membrane, Journal Of Physical Sciences, 11 (2000) pp 37 – 56
5. M.R. Othman, H.Mukhtar, Y.W.Ring and A.L. Ahmad, Development Of Zirconia-Alumina Composite Membrane by Using Sol-Gel Technique, Journal of Physical Sciences, 11 (2000) pp 27 – 36
6. Abdul Latif Ahmad and Norliza Ibrahim, Pulsed Electrokinetics Membrane Cleaning For Dead End Microfiltration and Ultrafiltration, Institute Of Engineer‘s Malaysia (IEM) Journal, (2000) pp 24-30
7. A.L. Ahmad, N.A. Ariffin and M.Z. Abu Bakar, Prediction Of Flux Using Force Balance Model For Electrophoretic Membrane Cleaning, International Journal Of Engineering Science And Technology, (2001) pp 103-119
8. A.L. Ahmad and S. Ismail, Prevention Of Membrane Fouling Using Electric Pulse In Dead End Microfiltration Of Titanium Suspensions, Journal of Technology (Environmental and Technology Process), 34 (2001) pp 21-37
9. A.L. Ahmad and A. Mariadas, Spray Drying As An Alternative Method for Production of Cocoa Powder with Prior Usage of SFE to Reduce the Cocoa Fat, Journal of Physical Sciences, 12 (2001) pp 105-115
10. A.L. Ahmad and I.A. Azid, Membrane Cleaning Using Electric Pulse In Dead End Ultrafiltration of Proteneceous Solution, ASEAN Journal on Science & Technology for Development, 18 (2001) pp 45-58
11. M.R. Othman, A.L. Ahmad and H. Mukhtar, Characteristics of Unsupported Alumina Membrane Prepared using Sol-Gel Technique, ASEAN Journal on Science & Technology for Development, 18 (2001) pp 59-70
12. S.H. Tan, A.L. Ahmad, M.G. Mohd. Ghazali and H.Hassan, Separation of Aqueous Isopropanol through Chitosan/Poly (Vinyl Alcohol) Blended Membranes by Pervaporation, IIUM-Engineering Journal, 2 (2001) pp 7 – 12
13. A.L. Ahmad, W.A. Harris and Syafie, Removal Of Dye From Wastewater Of Textile Industry Using Membrane Technology, Journal of Technology (Environmental and Technology Process), 36 (2002) pp 31-44
14. A.L. Ahmad, W.R. Bowen and N. Ibrahim, Automated Electrophoretic Membrane Cleaning For Dead End Microfiltration and Ultrafiltration, Journal Of Separation and Purification Technology, 29 (2002) pp 105-112
15. S.H. Tan, A.L. Ahmad, M.G. Mohd. Ghazali and H.Hassan, Performance of Chitosan Membranes Crosslinked with Gluteraldehyde in Pervaporation Separation, ASEAN Journal of Sciences and Technology for Development, 19 (2002) pp 69-83
16. A.L.Ahmad, N.Ibrahim, S.Ismail and S.Bhatia, Coagulation-Sedimentation-Extraction Pretreatment Methods for the Removal of Suspended Solids and Residual Oil from Palm Oil Mill Effluent (POME), IIUM-Engineering Journal, 3(1) (2002) pp23-31
17. A.L. Ahmad and N. Ibrahim, Pulsed Electrophoretic Membrane Cleaning for Dead-end Ultrafiltration Process, Jurnal Kejuruteraan, 11 (2002) pp 3-16
18. A.L. Ahmad, W.K.Ng and S.H. Tan, Characterisation of Homogeneous and Crosslinked Chitosan Membranes Developed from Shrimp Shell Waste, Journal of Physical Science, 13 (2002) pp 9 – 20
19. A.L.Ahmad, W.K.Ng and S.H. Tan, Synthesis and Evaluation of Homogeneous and Crosslinked Chitosan Based Membranes, Journal of Industrial Technology, 11(2) (2002) pp 57 – 66
20. Ahmad, A. L., Ooi, B. S. & Choudhury, J. P. 2002. Preparation and characterization of interfacial 26ehavior26ed membrane from 3,5-diaminobenzoic acid. Songklanakarin Journal of Science and Technology, 24 (Supplementary), 807-814.
21. A.L. Ahmad, B.S. Ooi and J.P. Choudhury, Preparation and Characterisation of Co-Polyamide Thin Film Composite Membrane from Piperazine and 3,5-Diaminobenzoic Acid, Desalination Journal, 158 (2003) pp 101- 108
22. I.A. Azid, A.L. Ahmad, R.M. Yusoff and K. N. Seetharamu, Application of Back Propagation Neural Network in Predicting Palm Oil Mill Emmissions, ASEAN Journal of Sciences and Technology for Development, 20 (2003) pp 71 – 86
23. A.L. Ahmad, S. Ismail and S. Bhatia, Water Recycling from Palm Oil Mill Effluent (POME) using Membrane Technology, Desalination Journal, 157 (2003) pp 87-95.
24. A.L. Ahmad, S.Ismail, N.Ibrahim and S.Bhatia, Removal of Suspended Solid and Residual Oil from Palm Oil Mill Effluent, Journal of Chemical Technology and Biotechnology, 78(9) (2003) pp 971 – 978
25. A.L. Ahmad and A. Mariadas, Reduction of Membrane Fouling using A Helicle Baffle for Cross Flow Filtration: A Review, Journal Of Industrial Technology, 12(1) (2003) pp 9 – 26
26. A.L. Ahmad, Y.H. Chong and B.S. Ooi, Separation 26ehavior of Phenol, p-Nirophenol and 3-Chlorophenol by using Cellulose Acetate Membrane, Jurnal Jurutera Kimia Malaysia, 3 (2003) pp 73 – 84
27. H.I. Maarof, B.H. Hameed and A.L. Ahmad, Adsorption Equilibrium of Phenol from Aqueous Solution Using Modified Clay, Jurnal Jurutera Kimia Malaysia, 3 (2003) pp 85- 96
28. A.L. Ahmad,  B.S. Ooi,  S.H. Tan and J.P.  Choudhury, Preparation and Characterization of Interfacial Polymerised Membrane From 3,5-Diaminobenzoic Acid, Songklanakarin Journal of Science and Technology, 24 (2002) pp B-91 – B101
29. A.L. Ahmad, K. Shitamparam, S. Ismail and M.M. D. Zulkali, Extraction of Residue Oil from palm Oil Mill Effluent (POME) using Organic Solvent, ASEAN Journal of Sciences and Technology for Development, 20 (3&4) (2003) pp 385-394
30. S.H. Tan, A.L. Ahmad, M.G. Mohd. Nawawi, H. Hasan, Sorption and Swelling Characteristic of Chitosan Membrane in Isopropanol-water Mixtures, International Journal of Engineering Science & Technology, 3(1) (2003) pp 53 – 64.
31. A.L. Ahmad and K.Y. Tan, Reverse Osmosis of Binary Organic Solute Mixtures in the Presence of Strong Solute- Membrane Affinity,Desalination Journal, 165 (2004) pp 193 –199
32. A.Wahab Mohammad, Nora’aini Ali, A.L. Ahmad and Nidal Hilal, Optimized Nanofiltration Membranes: Relevance to Economic Assessment and Process Performance,Desalination Journal, 165 (2004) pp 243 – 250
33. A.L. Ahmad, B.S. Ooi, A.Wahab Mohammad and J.P. Choudhury, Development of a Highly Hydrophilic Nanofiltration Membrane for Desalination and Water Treatment, Desalination Journal, 168 (2004) pp 215 – 221
34. A.L. Ahmad and A. Mariadas (2004). Baffled Microfiltration Membrane and Its Fouling Control for Feed Water of Desalination, Desalination Journal, 168, (2004) pp 223-230
35. A.L. Ahmad, S. Sumathi &B. Hameed, Chitosan:A Natural Biopolymer for the Adsorption of Residue Oil from Oily Wastewater, Adsorption Science and Technology Journal, 22(1) (2004) pp 75 – 88
36. A.L. Ahmad, M.R. Othman and H. Mukhtar, H2 Separation from Binary Gas Mixture using Coated Alumina- Titania Membrane by Sol Gel Technique at High Temperature Region, International Journal of Hydrogen Energy, 29(8) (2004) pp 817-828
37. A.L. Ahmad, B.S. Ooi and J. Choudhary, Effect of Hydrophilization Additive and Reaction Time on Separation Properties of Polyamide Nanofiltration Membrane, Journal of Separation Science and Technology, 39(8) (2004), pp 1815 – 1831.
38. H.I. Maarof, B.H. Hameed and A.L. Ahmad, Adsorption Isotherm for Phenol onto Activated Carbon,  Asean Journal of Chemical Engineering, 4(1) (2004) pp 70 – 76
39. A.L. Ahmad, B.S Ooi, J.P. Choudhury and A.W. Mohammad, Effect of Constricted Polymerization Time on nanofiltration Membrane Characteristics and Performance: A study Using Donnan Steric Pore Flow Model,Journal of Applied Polymer Science, 94 (2004) pp 394 – 399
40. H.I. Maarof, B.H. Hameed, A.L.Ahmad, Adsorption Kinetics of Phenolic Compoundes onto Activated Carbon, Engineering Journal of the University of Qatar, 17 (2004) pp 29-38
41. A.L. Ahmad, B.S. Ooi, A. W. Mohammad, J. P. Choudhury, Composite Nanofiltration Polyamide Membrane: A Study on the Diamine Ratio and Its Performance Evaluation, Industry & Engineering Chemistry Research, 43 (2004) pp 8074 – 8082
42. A.L. Ahmad, I.A. Azid, A.R. Yusof, K.N. Seetharamu,  Emission Control in Palm Oil Mills Using Artificial Neural Network and Genetic Algorithm, Computers and Chemical Engineering, 28(12) (2004) pp 2709 -2715
43. Y.B.C. Ani, B.H. Hameed and A.L. Ahmad,Basic dye Adsorption on Modified Montmorillonite, Asean Journal on Science and Technology for Development, 21(2&3) (2004) pp 93-102
44. A.L. Ahmad, B.S. Ooi and J.P. Choudhury, Characteristic Of Co-Polyamide Nanofiltration Membrane: Effect Of Reaction Time, Journal of Technology, 41 (2004) pp 49 -60
45. M.R. Othman, H. Mukhtar and A.L. Ahmad,  Gas Permeation Characteristic Across Nano-Porous Inorganic Membranes, IIUM Engineering Journal, 5(2) (2004) pp 17 – 33
46. A.L. Ahmad, S. Sumathi and Bassim H. Hameed, Coagulation-Adsorption of Suspended Solids and Residual Oil from Palm Oil Mill Effluent using Chitosan, ASEAN Journal of Chemical Engineering, 4(2) (2004) pp. 48- 57
47. A.W. Mohamad, N. Ali and A. L. Ahmad, Use of Nanofiltration Predictive Model for Membrane Selection and System Cost Assessment, Journal of Separation and Purification Technology, 41 (2005) pp. 29-37
48. A.L. Ahmad, S. Bhatia, N.Ibrahim and S.Sumathi, Adsorption of Residual Oil from Palm Oil Mill Effluent using Rubber Powder,Brazilian Journal of Chemical Engineering, 22(3) (2005) pp 371 – 379
49. A.L. Ahmad, M.F. Chong and S. Bhatia,  Mathematical Modelling and Simulation of Multiple Solutes System for Nanofiltration Process,Journal of Membrane Science, 253(1-2) (2005) pp 103-115
50. A.L. Ahmad and B.S. Ooi, Properties-performance of Thin Film Composites Membrane: Study on Trimesoyl Chloride Content and Polymerization Time,Journal of Membrane Science, 255(1-2) (2005), pp 67-77
51. A.L. Ahmad, S. Sumathi and B.H. Hameed, Residue Oil and Suspended Solids Removal using Natural Adsorbents Chitosan, Bentonite and Activated Carbon: A Comparative Study. Chemical Engineering Journal, 108(1-2) (2005) pp 179-185
52. A.L. Ahmad, A. Mariadas and K.K. Lau, Flux Enhancement by Introducing Turbulence Effect for Microfiltration of Saccharamyces Cerevisiae, Journal of Separation Science and Technology, 40 (2005) pp 1213-1225
53. A.L. Ahmad, S. Sumathi and B.H. Hameed, Adsorption of Residue Oil from Palm Oil Mill Effluent using Powder and Flake Chitosan: Equilibrium and Kinetics Studies, Water Research Journal, 39(12) (2005) pp 2483-2494
54. A.L. Ahmad, M. Sarif and S. Ismail, Development of Integrally Skinned Ultrafiltration Membrane for Wastewater Treatment: Effect of Different Formulation of PSf/NMP/PVP on Flux and Rejection, Desalination Journal, 179(1-3) (2005) pp 257-26
55. M.M.D. Zulkali, A.L. Ahmad and C.J.C. Derek, Membrane Application in Proteomic Studies: Preliminary Studies on the Effect of pH, Ionic Strength and Pressure on Protein Fractionation, Desalination Journal, 179(1- 3) (2005) pp 381-390
56. Azam T.Mohd Din, Bassim H. Hameed, A.L. Ahmad, Pyrolysis Kinetics Of Oil-Palm Solid Waste”, Engineering Journal of the University of Qatar, 18 (2005) pp 57-66
57. A.L. Ahmad, S. Ismail and S. Bhatia, Ultrafiltration Behavior In The Treatment Of Agro-Industry Effluent: Pilot Scale Studies, Journal Of Chemical Engineering Science, 60(19) (2005) pp 5385-5394
58. A.L. Ahmad, N.F. Idrus and M.R.Othman, Preparation of Perovskite Alumina Ceramic Membrane using Sol- Gel Method, Journal of Membrane Science, 262(1-2) (2005) pp 129-137
59. A.L. Ahmad, K.K. Lau and M.Z. Abu Bakar, Impact Of Different Spacer Filament Geometries On Concentration Polarization Control In Narrow Membrane Channel, Journal Of Membrane Science, 262(1-2) (2005) pp 138-152
60. A.L.  Ahmad,  S.  Ismail  and  S.  Bhatia,  Membrane  Treatment  For  Palm  Oil  Mill  Effluent:  Effect  of Transmembrane Pressure And Crossflow Velocity, Desalination Journal, 179(1-3) (2005) pp 245-255
61. A.L. Ahmad, K.K. Lau, M.Z. Abu Bakar and S.R. Abd. Shukor, Integrated CFD Simulation Of Concentration Polarization In Narrow Membrane Channel, Computers and Chemical Engineering Journal, 29(10) (2005) pp 2087-2095
62. A.L. Ahmad, S. Ismail And S. Bhatia, Optimization Of Coagulation-Flocculation Process For Palm Oil Mill Effluent Using Response Surface Methodology, Journal of Environmental Science and Technology, 39(8) (2005) pp 2828-2834
63. A.L. Ahmad, K.K. Lau, M.Z. Abu Bakar and S.R. Abd. Shukor, Modified Boundary Condition for Membrane Wall Concentration Prediction in Narrow Membrane Channel, Journal of Applied Membrane Sciences & Technology, 1 (2005) pp 87-101
64. A.L. Ahmad and B.S. Ooi, Optimization Of Composite Nanofiltration Membrane Through pH Control: Application In CuSo4 Removal, Journal of Separation and Purification Technology, 47 (2006) pp. 162-172
65. A.L. Ahmad, M.G Mohd. Nawawi, L.K. So, Development of Novel NH4 Zeolite-Filled Chitosan Membranes for the Dehydration of Water-Isopropanol Mixture using Pervaporation, Journal of Separation Science and Technology, 40(15) (2005) pp. 3071 -3091
66. A.L. Ahmad, M.G Mohd. Nawawi, L.K. So, Characterization and Performance Evaluation of Sodium Zeolite- Y- Filled Chitosan Polymeric Membrane: Effect of Sodium Zeolite –Y Concentration, Journal of Applied Polymer Science, 99(4) (2006) pp. 1740 – 1751
67. S.Y.Chin, A.L. Ahmad, A.R. Mohamed and S. Bhatia, Characterization and Activity of Zinc Acetate Complex Supported over Functionalized Silica as a Catalyst for the Production of Isopropyll Palmitate,Applied Catalysis A, 297(1) (2006) pp 8 – 17
68. M.M.D.  Zulkali,  A.L.Ahmad  and  N.H.  Norulakmal,  Oryza  Sativa  L.Husk  As  Heavy  Metal  Adsorbent: Optimization With Lead As Model Solution, Journal of Bioresource Technology, 97(1) (2006) pp 21-25.
69. A.L. Ahmad, S. Sumathi and B.H. Hameed, Coagulation of Residue Oil and Suspended Solid in Palm Oil Mill Effluent by Chitosan, Alum and PAC, Chemical Engineering Journal, 118(1-2) (2006) pp 99-105
70. A.L. Ahmad, S.W. Puasa and M.M.D. Zulkali, Micellar-Enhanced Ultrafiltration for Removal of Reactive Dyes from an Aqueous Solution, Desalination, 191(1-3) (2006) pp 153-161
71. A.L. Ahmad, M.F. Chong and S. Bhatia, Drinking Water Reclamation From Palm Oil Mill Effluent (POME) Using Membrane Technology, Desalination, 191(1-3) (2006) pp 35-44.
72. S.H. A. Rahman, J.P. Choudhury and A.L. Ahmad, Production of Xylose From Oil Palm Empty Fruit Bunch Using Sulfuric Acid, Biochemical Engineering Journal, 30(1) (2006) pp 97-103
73. A.L. Ahmad and B.S. Ooi, Characterization of Composite Nanofiltration Membrane Using Two-Parameters Model of Extended Nernst-Planck Equation, Journal Of Separation And Purification Technology, 50(3) (2006) pp. 300-309
74. A.L. Ahmad, Chong Mei Fong and Subhash Bhatia, Ultrafiltration Modeling of Multiple Solutes System for Continuous Cross-Flow Process, Chemical Engineering Science, 61(15) (2006) pp. 5057-5069
75. A. L. Ahmad and N.N.N. Mustafa, Pore surface fractal analysis of palladium-alumina ceramic membrane using Frenkel-Halsey-Hill (FHH) model, Journal of Colloid and Interface Science, 301(2) (2006) pp. 575-584
76. M.R. Othman, N.N.N. Mustafa and A.L. Ahmad, Effect of thermal treatment on the microstructure of sol-gel derived porous alumina modified platinum,Microporous and Mesoporous Materials, 91(1-3) (2006) pp 268-275
77. S.S. Wong, T.T. Teng, A. L. Ahmad, A. Zuhairi and G. Najafpour, Treatment of pulp and paper mill wastewater by polyacrylamide (PAM) in polymer induced flocculation, Journal of Hazardous Materials, 135(1-3) (2006) pp. 378-388
78. A. L. Ahmad, N. F. Idrus and S. R. Abd Shukor, Surface Fractal Dimension of Perovskite-Doped Alumina Membrane: Influence of Calcining Temperature, Journal of the American Ceramic Society, 89(5) (2006) pp. 1694
79. A. L. Ahmad, M. R. Othman andN. F. Idrus, Synthesis and Characterization of Nano-Composite Alumina- Titania Ceramic Membrane for Gas Separation, Journal of the American Ceramic Society, 89(10) (2006) pp. 3187-3193
80. Ahmad, A.L., Chong, M.F. and Bhatia, S., Prediction of Breakthrough Curves for Adsorption of Complex Organic Solutes Present in Palm Oil Mill Effluent (POME) On Granular Activated Carbon, Industrial and Engineering Chemistry Research, 45(20) (2006) pp. 6793-6802
81. Ahmad, A.L. and Lau, K.K., Impact of Different Spacer Filaments Geometries On 2D Unsteady Hydrodynamics And Concentration Polarization in Spiral Wound Membrane Channel, Journal of Membrane Science, 286(1-2) (2006) pp. 77-92
82. Ahmad, A.L., Mohd Nawawi, M.G. and So, L.K., Characterization and performance evaluations of sodium zeolite-Y filled chitosan polymeric membrane: Effect of sodium zeolite-Y concentration, Journal of Applied Polymer Science, 99(4) (2006) pp. 1740-1751
83. Bhatia, S., Ahmad, A.L., Mohamed, A.R. & Chin, S.Y., Production of isopropyl palmitate in a catalytic distillation column: Experimental studies,Chemical Engineering Science, 61(22) (2006) pp. 7436-7447
84. Chin, S.Y., Ahmad, A.L., Mohamed, A.R. & Bhatia, S., Esterification of palmitic acid with iso-propanol in a catalytic distillation column: Modeling and simulation studies, International Journal of Chemical Reactor Engineering, 4 (2006) pp. 1-17.
85. Chin, S.Y., Ahmad, A.L., Mohamed, A.R. & Bhatia, S., Characterization and activity of zinc acetate complex supported over functionalized silica as a catalyst for the production of isopropyl palmitate,Applied Catalysis A: General, 297(1) (2006) pp. 8-17
86. Zulkali, M.M.D., Ahmad, A.L. and Norulakmal, N.H., Oryza sativa L. husk as heavy metal adsorbent: Optimization with lead as model solution, Bioresource Technology, 97(1) (2006) pp. 21-25
87. Rahman, S.H. A., Choudhury, J.P., Ahmad, A.L. and A.H. Kamaruddin, Optimization studies on acid hydrolysis of oil palm empty fruit brunch fiber for production of Xylose, Bioresource Technology, 98 (2006) pp. 554-559
88. A.L. Ahmad, S. R. Abd Shukor and C. P. Leo, Synthesis and Characterization of Polymeric V2O5/AlO (OH) with Nanopores on Alumina Support, Journal of Nanoscience and Nanotechnology, 6(12) (2006) pp. 3910-3914
89. A. L. Ahmad, M.M. Loh and J.A. Aziz, Preparation and Characterization of Activated Carbon from Oil Palm Wood and Its Evaluation On Methylene Blue Adsorption, Dyes and Pigments, 75 (2007) pp. 263-272
90. Hameed, B.H., Din, A.T.M. and Ahmad, A.L., Adsorption of methylene blue onto bamboo-based activated carbon: Kinetics and equilibrium studies, Journal of Hazardous Materials, 141 (2007) pp. 819-825
91. Tan, I.A.W., Hameed, B.H. and Ahmad, A.L., Equilibrium and kinetic studies on basic dye adsorption by oil palm fibre activated carbon, Chemical Engineering Journal, 127 (2007) pp. 111-119
92. .H.A. Rahman, J.P. Choudhury, A.L. Ahmad and A. H. Kamaruddin, Optimization studies on acid hydrolysis of oil palm empty fruit bunch fiber for production of xylose, Bioresource Technology, 98 (2007) pp. 554-559
93. Hameed, B.H., Ahmad, A.L. and Latiff, K.N.A., Adsorption of basic dye (methylene blue) onto activated carbon prepared from rattan sawdust, Dyes and Pigments, 75 (2007) pp. 143-149
94. M.M.D Zulkali, A.L. Ahmad, N.H. Norulakma and NS Sharifah, Comparative Studies of Oryza Sativa L.Husk and Chitosan As Lead Adsorbent, Journal of Chemical Technology and Biotechnology, 81 (2006) 1324-1327
95. Ahmad, A.L., Wong, S.S., Teng, T.T. and Zuhairi, A., Optimization of Coagulation-Flocculation Process for Pulp and Paper Mill Effluent by Response Surface Methodological Analysis, Journal of Hazardous Materials, 145 (2007) pp. 162-168.
96. Ahmad, A.L. and Mustafa, N.N.N., Sol–gel synthesized of nanocomposite palladium–alumina ceramic membrane for H2 permeability: Preparation and characterization, International Journal of Hydrogen Energy, 32 (2007) pp. 2010-2021
97. Ahmad, A.L., Chong, M.F. and Bhatia, S., Mathematical modeling of multiple solutes system for reverse osmosis process in palm oil mill effluent (POME) treatment, Chemical Engineering Journal, 132 (2007) pp. 183-193
98. A.L. Ahmad and K.K. Lau, Modeling, simulation and experimental validation for aqueous solutions flowing in nanofiltration membrane channel,Industrial & Engineering Chemistry Research, 46 (4) (2007) pp. 1316-1325
99. S. Bhatia, Z. Othman and A.L. Ahmad, Pretreatment of palm oil mill effluent (POME) using Moringa oleifera seeds as natural coagulant,Journal of Hazardous Material, 145 (1-2) (2007) pp. 120-126
100. A.L.   Ahmad,   S.W.Puasa,   Reactive   dyes   decolourization   from   an   aqueous   solution   by   combined coagulation/micellar Enhanced Ultrafitration Process, Chemical Engineering Journal, 132 (2007) pp. 257-265.
101. S. Bhatia, Z. Othman and A.L. Ahmad, Coagulation – Flocculation Process for POME Treatment using Moringa oleiferaSeeds Extract: Optimization Studies, Chemical Engineering Journal, 133 (2007) pp. 205-212.
102. A.L. Ahmad, S.S. Wong, T.T. Teng and A. Zuhairi, Improvement of Alum and PAC Coagulation by Polyacrylamids (PAMs) for the Treatment of Pulp and Paper Mill Wastewater, Chemical Engineering Journal, 137 (3) (2008) pp. 510-517.
103. I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Optimization of Preparation Conditions for Activated Carbons from Coconut Husk Using Response Surface Methodology, Chemical Engineering Journal, 137 (3) (2008) pp. 462-470.
104. M. Hasan, A.L. Ahmad and B.H. Hameed, Adsorption of Reactive Dye onto Cross-Linked Chitosan/Oil Palm Ash Composite Beads, Chemical Engineering Journal, 136 (2-3) (2008) pp. 164-172
105. A.L. Ahmad, L.S. Tan, and S.R. Abd. Shukor, Dimethoate and Atrazine Retention from Aqueous Solution by Nanofiltration Membranes, Journal of Hazardous Material,151 (1) (2008) pp. 71-77
106. A. L. Ahmad, S. C. Low and S.R. Abd. Shukor, Effects of Membrane Cast Thickness on Controlling the Macrovoid Structure in Lateral Flow Nitrocellulose Membrane and Determination of Its Characteristics,Scripta Materialia, 57 (2007) pp. 743-746
107. A.L. Ahmad, M.F. Chong and S. Bhatia, Population Balance Model (PBM) for Flocculation Process: Simulation and Experimental Studies of Palm Oil Mill Effluent (POME) Pretreatment, Chemical Engineering Journal , 140(2008) pp. 86-100
108. I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Preparation of activated carbon from coconut husk: Optimization study on removal of 2,4,6-trichlorophenol using response surface methodology, Journal of Hazardous Materials, 153 (2008) pp. 709-717
109. B.H. Hameed, D.K. Mahmoud and A.L. Ahmad, Sorption of basic dye from aqueous solution by pomelo (Citrus grandis) peel in a batch system,Colloids and Surfaces A: Physicochemical and Engineering Aspects, 316 (1-3) (2008) pp. 77-84
110. Ahmad, A. L.; Tan, L. S.; Abd. Shukor, S. R., The role of pH in nanofiltration of atrazine and dimethoate from aqueous solution, Journal of Hazardous Materials, 154 (2008) pp. 633-638.
111. Bhatia, S.; Mohamed, A. R.; Ahmad, A. L.; Chin, S. Y., Production of isopropyl palmitate in a catalytic distillation column: Comparison between experimental and simulation studies, Computers & Chemical Engineering,31(10) (2007) pp. 1187-1198.
112. Tan, I. A. W.; Ahmad, A. L.; Hameed, B. H., Adsorption of basic dye on high-surface-area activated carbon prepared from coconut husk: Equilibrium, kinetic and thermodynamic studies, Journal of Hazardous Materials, 154 (2008) pp. 337-346.
113. Fong,Y.Y.;Abdullah, A.Z.;Ahmad, A.L.;Bhatia,S.,Zeolite membrane based selective gas sensors for monitoring and control of gas emissions:Development and their performance,Sensor Letters,5(2007) 485-499
114. A.L. Ahmad, C. P. Leo and S. R. Abd Shukor, Tailoring of a γ-alumina membrane with a bimodal pore size distribution for improved permeability, Journal of the American Ceramic Society, 91(1) (2008) pp. 246-251
115. A.L. Ahmad, N. A. H. Hairul, The effect of protein-membrane interactions on filtration behavior in Forced- Flow Electrophoresis of protein solutions, Separation and Purification Technology, 61 (2008) pp. 384-390
116. A.L. Ahmad, C. P. Leo and S. R. Abd Shukor, Preparation of γ-alumina thin layer with bimodal pore size distribution for diminution of transport resistance in bi-layered membrane, Thin Solid Films, 516(12) (2008) pp. 4319-4324
117. Tan, I. A. W.; Ahmad, A. L.; Hameed, B. H., Equilibrium and kinetic studies of methylene blue adsorption on activated carbon prepared from oil palm empty fruit bunch,Journal of Industrial Technology,16 (2007)pp.63-79
118. I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Adsorption of basic dye using activated carbon prepared from oil palm shell: Batch and fixed bed studies, Desalination, 225(2008), pp. 13-28
119. A.L. Ahmad; S. C. Low; S.R. Abd. Shukor; A. Ismail, Synthesis and Characterization of Polymeric Nitrocellulose Membrane: Influence of Additives and Pore Former on Membrane Morphology, Journal of Applied Polymer Science, 108 (2008) pp. 2550–2557
120. I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Enhancement of basic dye adsorption uptake from aqueous solutions using chemically modified oil palm shell activated carbon,Colloids and Surfaces A: Physicochemical and Engineering Aspects,318 (2008) pp. 88-96
121. A.L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Recovery of oil and carotenes from palm oil mill effluent (POME),Chemical Engineering Journal,141 (2008) pp. 383-386
122. W.J.N. Fernando, A.L. Ahmad, S.R. Abd. Shukor and Y.H. Lok, A model for constant temperature drying rates of case hardened slices of papaya and garlic, Journal of Food Engineering, 88 (2008) pp. 229-23
123. B.H. Hameed, D.K. Mahmoud and A.L. Ahmad, Sorption equilibrium and kinetics of basic dye from aqueous solution using banana stalk waste, Journal of Hazardous Materials, 158 (2008) pp. 499-506.
124. B.H. Hameed, I.A.W. Tan and A.L.Ahmad, Optimization of basic dye removal by oil palm fibre-based activated carbon using response surface methodology, Journal of Hazardous Materials, 158 (2008) pp. 324-332
125. B.H. Hameed, D.K. Mahmoud and A.L.Ahmad, Equilibrium modeling and kinetic studies on the adsorption of basic dye by a low-cost adsorbent: Coconut (Cocos nucifera) bunch waste, Journal of Hazardous Materials, 158 (2008) pp. 65-72
126. A.L. Ahmad, C.J.C. Derek, M.M.D. Zulkali and Chan Lai Keng, Optimization of thaumatin extraction by aqueous two phase system (ATPS) using response surface methodology (RSM), Separation and Purification Technology,62 (2008) pp. 702-708
127. Ahmad, A.L., Leo, C.P. & Abd. Shukor, S.R., Preparation of silica/-alumina membrane with bimodal porous layer for improved permeation in ions separation. Journal of the American Ceramic Society,91 (2008) pp. 2009- 2014.
128. Fong, Y.Y.; Abdullah, A.Z.; Ahmad, A.L.; Bhatia, S., Development of functionalized zeolite membrane and its potential role as reactor combined separator for para-xylene production from xylene isomers, Chemical Engineering Journal, 139 (2008) pp. 172-193
129. Y.F. Yeong, A.Z. Abdullah, Ahmad, A.L, S. Bhatia, Synthesis, characterization of phenethyltrimethoxysilane (PE) modified organic-inorganic hybrid silicalite-1 molecular sieves and its transformation into solid acid materials, Advanced Materials Research, 47-50 PART 1 (2008) pp. 238-241
130. Azam T. Mohd Din, B.H. Hameed, Abdul L. Ahmad, Batch adsorption of phenol onto physiochemical-activated coconut shell, Journal of Hazardous Materials,161 (2009) pp. 1522–1529.
131. I.A.W. Tan, A.L. Ahmad, B.H. Hameed, Fixed-bed adsorption performance of oil palm shell-based activated carbon for removal of 2,4,6-trichlorophenol, Bioresource Technology, 100 (2009) pp. 1494–1496
132. B.H. Hameed, I.A.W. Tan and A.L. Ahmad, Adsorption isotherm, kinetic modeling and mechanism of 2,4,6- trichlorophenol on coconut husk-based activated carbon,Chemical Engineering Journal,144(2008) pp. 235-244
133. Y.F. Yeong, A.Z. bin Abdullah, A.L. Ahmad, S. Bhatia, Synthesis and Characterization of Sulphonic Acid 3- Mercaptopropyltrimethoxysilane Functionalized Silicalite-1 Membrane, Journal of Engineering Science and Technology (JESTEC), 3 (2008) pp. 87-96
134. Y.F. Yeong, A.Z. Abdullah, A.L. Ahmad, S. Bhatia, Synthesis, structure and acid characteristics of partially crystalline silicalite-1 based materials,Microporous and Mesoporous Materials, 123(1-3) (2009) pp. 129-139
135. A.L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Adsorption kinetics and thermodynamics of beta-carotene on silica based adsorbent,Chemical Engineering Journal, 148(2-3) (2009) pp. 378-384.
136. A.L. Ahmad, C. P. Leo and S. R. Abd Shukor, Vanadium oxide supported γ-alumina with bimodal porous structure for intra-particle diffusion enhancement in styrene oxidation reaction, Journal Porous Material, 16 (2009) pp. 33-40
137. A.L. Ahmad, L.S. Tan, and S.R. Abd. Shukor, Modeling of the retention of atrazine and dimethoate with nanofiltration, Chemical Engineering Journal,147 (2009) pp. 280-286
138. Hameed, B.H., Salman, J.M., Ahmad, A.L.,Adsorption isotherm and kinetic modeling of 2,4-D pesticide on activated carbon derived from date stones, Journal of Hazardous Materials, 163(1) (2009) pp. 121-126
139. A. L. Ahmad; S. C. Low; S.R. Abd. Shukor; A. Ismail, Optimization of Membrane Performance by Thermal- Mechanical Stretching Process using Responses Surface Methodology (RSM), Separation and Purification Technology, 66 (2009) pp. 177-186
140. L.H.Chin, B.H.Hameed,A.L.Ahmad,Process Optimization for Biodiesel Production from Waste Cooking Palm Oil (Elaeis guineensis) Using Response Surface Methodology,Energy and Fuels,23(2)(2009) pp. 1040-1044
141. B.H. Hameed, I.A.W. Tan, A.L. Ahmad, Preparation of oil palm empty fruit bunch-based activated carbon for removal of 2,4,6-trichlorophenol: Optimization using response surface methodology, Journal of Hazardous Materials, 164(2-3) (2009) pp. 1316-1324
142. I.A.W. Tan, A.L. Ahmad, B.H. Hameed, Adsorption isotherms, kinetics, thermodynamics and desorption studies of 2,4,6-trichlorophenol on oil palm empty fruit bunch-based activated carbon, Journal of Hazardous Materials, 164(2-3) (2009) pp. 473-482
143. A.L. Ahmad, N.A.H. Hairul, Protein-membrane interactions  in Forced-Flow Electrophoresis of protein solutions: effect of initial pH and initial ionic strength, Separation and Purification Technology, 66 (2009) pp. 286-296
144. M.F. Chong, A.L. Ahmad, S. Bhatia, P.E. Poh, Palm oil mill effluent (POME) treatment using membrane technology, The Chemical Engineer, 814 (2009) pp. 31-33
145. A. L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Optimization of oil and carotenes recoveries from palm oil mill effluent using response surface methodology, Journal of Chemical Technology and Biotechnology, 84 (2009) pp. 1063-1069
146. A.L. Ahmad, P.C. Oh, S.R. Abd Shukor, Sustainable Biocatalytic Synthesis of L-homophenylalanine as Pharmaceutical Drug Precursor, Biotechnology Advances, 27 (2009) pp. 378-384
147. A. L. Ahmad, S. C. Low, S. R. Abd. Shukor and A. Ismail, Morphological and Thermal-Mechanical Stretching Properties on Polymeric Lateral Flow Membrane, Industrial & Engineering Chemistry Research, 48 (2009) pp. 3417–3424
148. A.L. Ahmad, M.F. Chong, S. Bhatia, A comparative study on the membrane based palm oil mill effluent (POME) treatment plant, Journal of Hazardous Materials,171 (2009) pp. 166-174
149. A.L. Ahmad, S.C. Low, S.R. Abd. Shukor and A. Ismail, Optimization of Membrane Formulation and Process Variables via Crossed-Design Concept in Desigin of Experimental (DOE), Separation Science and Technology,44(12), (2009) pp. 2870-2893
150. A. L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Separation of oil and carotenes from palm oil mill effluent by adsorption chromatography with silica based adsorbent, Asia-Pacific Journal of Chemical Engineering, 4(5) (2009) pp. 717-722
151. Ahmad A. L., Low S. C., Abd Shukor S. R. and Ismail, A., Preparation and Characterization of Various Membrane Morphologies for Lateral Flow Immunoassay Development, Journal of Applied Membrane Science and Technology, 5 (2007) pp. 23-29
152. Ahmad A. L., Low S. C., Abd Shukor S. R., Ismail, A. and A.R. Sunarti, Development of Lateral Flow Membrane for Immunoassay Separation, Desalination and water treatment, 5 (2009) pp. 99-105
153. A.L. Ahmad, C.Y. Chan, S.R. Abd Shukor, M.D. Mashitah and A.R. Sunarti, Isolation of carotenes from palm oil mill effluent and its use as a source of carotenes, Desalination and water treatment, 7 (2009) pp. 251-256
154. A.A. Ahmad, B.H. Hameed and A.L. Ahmad, Removal of disperse dye from aqueous solution using waste- derived activated carbon: Optimization study, Journal of Hazardous Materials, 170 (2009) pp. 612-619
155. A.L. Ahmad and C.Y. Chan, Sustainability of palm oil industries: An innovative treatment via membrane technology, Journal of Applied Sciences, 9(17) (2009) pp. 3074-3079
156. K.K.Lau, M.Z. Abu Bakar, A.L. Ahmad and T.Murugesan, Feed spacer mesh angle : 3D modeling, simulation and optimization based on unsteady hydrodynamic in spiral wound membrane channel, Journal of Membrane Science, 343 (2009) pp. 16-33
157. S.I.A. Razak, A.L. Ahmad, S.H.S. Zein, A.R. Boccaccini, MnO2-filled multiwalled carbon nanotube/polyaniline nanocomposites with enhanced interfacial interaction and electronic properties, Scripta MATERIALIA, 61 (2009) pp. 592-595.
158. Y.F. Yeong, A.Z. Abdullah, A.L. Ahmad, S. Bhatia, Process optimization studies of p-xylene separation from binary xylene mixture over silicalite-1 membrane using response surface methodology, Journal of Membrane Science, 341 (2009) pp. 96-108
159. A.L. Ahmad, A.R. Sunarti, L.K. Teong, W.J.N. Fernando, Development of thin film composite for CO2 separation in membrane gas absorption application, Asia-Pacific Journal of Chemical Engineering, 4(2009) pp. 787–792
160. A.L. Ahmad, C.P. Leo, S.R. Abd. Shukor, Statistical design of experiments for dye-salt-water separation study using bimodal porous silica/(-alumina membrane, Desalination and Water Treatment, 5 (2009) 80-90
161. A.L. Ahmad, C.Y. Chan, S.R. Abd Shukor and M.D. Mashitah, Adsorption chromatography of carotenes from extracted oil of palm oil mill effluent, Journal of Applied Sciences, 10(21) (2010) pp. 2623 – 2627.
162. A.L. Ahmad and B.S. Ooi, A study on acid reclamation and copper recovery using low pressure nanofiltration membrane, Chemical Engineering Journal, 156(2) (2010) pp. 257-263
163. Chew, T.L., Ahmad, A.L. and Bhatia, S.,Ordered mesoporous silica (OMS) as an adsorbent and membrane for separation of carbon dioxide (CO2),Advances in Colloid and Interface Science, 153 (2010) pp. 43-57
164. Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Separation of p-xylene from ternary xylene mixture using silicalite-1membrane: Process optimization studies, Journal of Chemical Technology and Biotechnology, 85 (2) (2010) pp. 216-225
165. Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Xylene isomerization kinetic over acid-functionalized silicalite-1 catalytic membranes: Experimental and modeling studies, Chemical Engineering Journal, 157(2-3) (2010) pp. 579-589
166. Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Synthesis, characterization and reactive separation activity of acid-functionalized silicate-1 catalytic membrane in m-xylene isomerization, Journal of Membrane Science, 360 (1-2) (2010) pp. 109 – 122
167. Ahmad A.L., Low S.C., Abd. Shukor S.R., Fernando, W.J.N. and Ismail, A., Hindered diffusion in lateral flow nitrocellulose membrane: Experimental and modeling studies, Journal of Membrane Science, 357 (1-2) (2010) pp. 178 – 184
168. Sajuni, N.R., Ahmad A. L. and Vadivelu, V.M., Effect of filter media characteristics, pH and temperature on the ammonia removal in the wasterwater, Journal of Applied Sciences, 10 (12) (2010) pp. 1146 – 1150
169. Sani, N.A.A., Ahmad A. L. and Zein, S.H.S., Preparation and properties of perovskite-dispersed titania membranes, Journal of Applied Sciences, 10 (12) (2010) pp. 1097 – 1103
170. Lau K.K., Abu Bakar M.Z. and Ahmad A.L., Murugesan T., Effect of spacer mesh length ratio on unsteady hydrodynamics in 2D spiral wound membrane (SWM) channel, Industrial and Engineering Chemistry Research, 49 (12) (2010) pp. 5834 – 5845
171. Chew, T.L., Ahmad A.L. and Bhatia, S., Rapid synthesis of thin SAPO-34 membranes using microwave heating, Journal of Porous Materials, 18 (2011) pp. 355-360
172. Chan, D.J.C., Ahmad, A.L. and Chan, L.K., Improvement of biomass and juvenile hormone III (JH III) production from Cyperus aromatics cell suspension culture via in situ membrane filtration technology, Acta Physiologiae Plantarum, Vol. 32(6) (2010) pp. 1153-1159.
173. Ahmad, A.L., Chan, C.Y., Abd Shukor, S.R. and Mashitah, M.D., Optimization of carotene recovery from extracted oil of POME by adsorption chromatography using response surface methodology, Separation and Purification Technology, 73 (2) (2010) pp. 279 – 28
174. Barzin, R., Shukor, S.R.A. and Ahmad, A.L., New spectrophotometric measurement method for process control of miniaturized intensified systems, Sensors and Actuators, B: Chemical, 146 (1) (2010) pp. 403 – 409
175. Y.T. Ong, A.L. Ahmad, S.H.S. Zein and S.H. Tan, A review on carbon nanotubes in an environmental protection and green engineering perspective, Brazilian Journal of Chemical Engineering, 27(2) (2010), pp. 227-242
176. A.L. Ahmad, A.R. Sunarti, K.T. Lee and W.J.N. Fernando, CO2  removal using membrane gas absorption, International Journal of Greenhouse Gas Control, 4 (3) (2010) pp. 495 – 498
177. A.L.Ahmad, Low, E.M. and Abd Shukor, S.R., Safety Improvement and operational enhancement via dynamic process simulator: A Review, Chemical Product and Process Modeling, 5(1) (2010), Article 25
178. W.J.N. Fernando, A.L.Ahmad and M.R. Othman, Convective drying rates of thermally blanched slices of potato (Solamum tuberosum) : Parameters for the estimation of drying rates, Food and Bioproducts Processing,89 (2010), pp. 514-519
179. W.J.Fernando, H.C.Low and A.L.Ahmad, Dependence of the effective diffusion coefficient of moisture with thickness and temperature in convective drying of sliced materials. A study on slices of banana, cassava and pumpkin,Journal of Food Engineering, 102 (4) (2011) pp. 310 -316
180. A.L.  Ahmad,  P.C.  Oh  and  S.R.A.  Shukor,  Synthesis of  L-homophenylalanine  via  integrated  membrane bioreactor : Influence of pH on yield, Biochemical Engineering Journal,52 (2-3) (2010) pp. 296 – 300
181. A.L. Ahmad, B. Koohestani and S. Bhatia and B.S. Ooi, Synthesis of vanadium oxide nanotubes via an ultrasonic method, Journal of Sol-Gel Science and Technology, 56(2010) pp. 327 – 332
182. A.L. Ahmad, M.A.T. Jaya and C.J.C. Derek, The effects of organic binders on palladium impregnated in TiO2 membrane synthesis:X-Ray diffraction analysis,Journal of the American Ceramic Society,93(1),(2010) pp. 3595 3599
183. A.L. Ahmad, Z.H. Ban and B.S. Ooi, A three-dimensional unsteady hydrodynamic profile of a reciprocating membrane channel, Journal of Membrane Science, 365(1-2) , (2010) pp. 426-437
184. Yeong, Y.F., Abdullah, A.Z. and Ahmad, A.L. and Bhatia, S., Modeling and simulation of an acid-functionalized silicalite-1 membrane reactor for xylene isomerization, Separation and Purification Technology, 75(2), (2010), pp. 183-192
185. S.I.A. Razak, S.H.S. Zein and A.L. Ahmad, Effect of para-hydroxybenzene sulfonic acid on the properties of ex site prepared polyaniline/multiwalled carbon nanotubes-MnO2, Nano : Brief Reports and Reviews,5(6) (2010), pp. 369-373
186. A.L. Ahmad, B.Z. Hong and O.B. Seng, CFD modeling of rotating spiral wound membrane with corrugated spacer : Shear rate effect, Journal of Materials Science and Engineering,5(2) (2011), pp. 1-5
187. A.L. Ahmad, N.H. Mat Yasin, C.J.C. Derek and J.K. Lim, Microalgae as a sustainable energy source for biodiesel production : A review, Renewable and Sustainable Energy Reviews, 15(1) (2011) pp. 584 – 593
188. Ahmad, A.L., M.A. Majid, and B.S. Ooi, Functionalized PSf/SiO2 nanocomposite membrane for oil-in-water emulsion separation, Desalination, 268(1-3) (2011) pp. 266-269.
189. Ahmad, A.L., Oh, P.C. and Abd Shukor, S.R., L-homophenylalanine production by reductive amination of 2- oxo-4-phenylbutanoic acid via integrated membrane bioreactor, Journal of Materials Science and Engineering, A, 1 (2011) pp. 139-145.
190. Ahmad, A.L., Jaya, M.A.T., Derek, C.J.C. and Ahmad, M.A., Synthesis and characterization of TiO2 membrane with palladium impregnation for hydrogen separation, Journalof Membrane Science, 366(1-2) (2011), pp. 166 – 175
191. Ong, Y.T., Ahmad, A.L., Zein, S.H.S., Sudesh, K. And Tan, S.H., Poly(3-hydroxybutyrate)-functionalised multi- walled carbon nanotubes/chitosan green nanocomposite membranes and their application in pervaporation, Separation and Purification Technology,76(3) (2011) pp. 419-427
192. Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Separation of p-xylene from binary xylene mixture over silicalite-1 membrane : Experimental and modelling studies, Chemical Engineering Science, 65(5) (2011), pp. 897-906
193. Mohan.J. and A.L. Ahmad, Synthesis and kinetic study of thermal cycloimidization of novel poly(amide amic acid) to poly(amide imide) by thermogravimetric analysis, Journal of Macromolecular Science: Part B,50(2011) pp. 1388-1401
194. A.L. Ahmad, P.C. Oh and S.R. Abd Shukor, Synthesis of 2-oxo-4-phenylbutanoic acid: Parameter Optimization using Response Surface Methodology, Chemical Engineering Journal, 171(2) (2011) pp. 640-645
195. A.L. Ahmad, N.A.A. Sani and S.H.S. Zein, Synthesis of a TiO2 ceramic membrane containing SrCo0.8Fe0.2O3 by the sol-gel method with a wet impregnation process for O2 and N2 permeation, Ceramics International, 37(8) (2011) pp. 2981-2989
196. A.L. Ahmad, N.A. Abdullah Sani and S.H.S. Zein, Influence of calcinations temperature and perovskite concentration on the morphology, gas permeance and selectivity of perovskite-titania membranes, Journal of Ceramic Science and Technology, 02(01) (2011) pp. 9-14
197. Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. andBhatia, S., Propylsulfonic acid-functionalized partially crystalline silicate-1 materials: Synthesis and characterization, Journal of Porous Materials, 18(2) (2011) pp. 147-157.
198. Chew, T.L., Ahmad, A.L. andBhatia, S., Ba-SAPO-34 membrane synthesized from microwave heating and its performance for CO2/CH4 gas separation, Chemical Engineering Journal,171(3) (2011) pp. 1053-1059
199. Adeli, H., Zein, S.H.S., Tan, S.H., Akil, H.M. and Ahmad, A.L., Synthesis, characterization and biodegradation of novel poly(L-lactide)/multi- walled carbon nanotube porous scaffolds for tissue engineering applications, Current Nanoscience,7(3) (2011) pp. 323-332.
200. Adeli, H., Sharif Zein, S.H., Tan, S.H. and Ahmad, A.L., Optimization of the mechanical strength properties of poly(L-lactide)/ multi-walled carbon nanotube scaffolds using response surface methodology, Nano : Brief Reports and Reviews,6(2) (2011) pp. 113-122
201. Abd Razak, S.I., Zein, S.H.S. and Ahmad, A.L., MnO2-filled multiwalled carbon nanotube/polyaniline nanocomposites: Effect of loading on the conduction properties and its percolation threshold,Nano : Brief Reports and Reviews,6(1) (2011) pp. 81-91
202. A.L. Ahmad, B. Koohestani, S. Bhatia and B.S. Ooi, Vanadium Oxide-Based Composite Catalysts for the Oxidation of Styrene: A Comparative Study, Current Nanoscience, 7 (2011) pp. 781-789
203. A.L. Ahmad, N.Ideris, B.S. Ooi, S.C. Low and A. Ismail, Morphology and polymorph study of a polyvinylidene fluoride (PVDF) membrane for protein binding: Effect of the dissolving temperature, Desalination,278 (2011) pp. 318-324
204. A.L. Ahmad, A. Kusumastuti, C.J.C. Derek and B.S. Ooi, Emulsion liquid membrane for heavy metal removal: An overview on emulsion stabilization and destabilization, Chemical Engineering Journal, 171 (2011) pp. 870- 882.
205. A.L. Ahmad, N.H. Mat Yasin, C.J.C. Derek and J.K. Lim, Optimization of microalgae coagulation process using chitosan, Chemical Engineering Journal,173(3) (2011) pp.879-882
206. K.-K. Chew,S.H.S. Zein and A.L. Ahmad, Aqueous electrophoretic deposition of hydroxyapatite coatings, Journal of Science and Technology, 49(5A) (2011 ) pp. 199-207
207. Fernando W.J.N., Low H.C. and Ahmad A.L., The effect of infrared on diffusion coefficients and activation energies in convective drying: A case study for banana, cassava and pumpkin, Journal of Applied Science, 11(21) (2011) pp. 3635-3639
208. Low, S.C., Ahmad, A.L., Ideris, N. and Ng, Q.H., Interaction of isothermal phase inversion and membrane formulation for pathogens detection in water,Bioresource Technology, 113 (2012) pp. 219-224
209. Yeo, C.-H., Zein, S.H.S., Ahmad, A.L. and Mcphail, D.S., Comparison of DOPA and DPPA liposome templates for the synthesis of calcium phosphate nanoshells, Ceramics International, 38 (2012) pp. 561-570
210. Chew, K.K., Zein, S.H.S., Ahmad, A.L., McPhail, D.S. and Boccaccini, A.R., Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications, Key Engineering Materials, 507 (2012) pp. 141-146.
211. Yeo, C.H., Zein, S.H.S., Ahmad, A.L. and McPhail, D.S., Investigation into the role of NaOH and calcium ion in the synthesis of calcium phosphate nanoshells, Brazilian Journal of Chemical Engineering, 29 (2012) pp. 147- 158.
212. Ahmad, A.L., Ramli, W.K.W., Fernando, W.J.N. and Daud, W.R.W., Effect of ethanol concentration in water coagulation bath on pore geometry of PVDF membrane for membrane gas absorption application in CO2 removal,Separation and Purification Technology, 88 (2012) pp. 11-18
213. Ahmad, A.L., Kusumastuti, A., Derek, C.J.C. and Ooi, B.S., Emulsion liquid membrane for cadmium removal: Studies on emulsion diameter and stability, Desalination, 287 (2012) pp. 30-34.
214. Ahmad, A.L., Yusuf, N.M. and Ooi, B.S., Preparation and modification of poly (vinyl) alcohol membrane : Effect of crosslinking time towards its morphology, Desalination, 287 (2012) pp. 35-40
215. K.-K. Chew, S.H.S. Zein and A.L. Ahmad, The corrosion scenario in human body: Stainless steel 316L orthopaedic implants, Natural Science, 4 (2012) pp. 184-188.
216. A.L. Ahmad, B. Koohestani, S. Bhatia and B.S. Ooi,Oxidation of styrene to benzaldehyde by anhydrous hydrogen peroxide on γ-alumina-supported V2O5 nanoparticle catalysts: Optimization studies using RSM, International Journal of Applied Ceramic Technology, (2012) pp. 1-11.
217. Ahmad, A.L., Low S.C., Abd. Shukor S.R., and Ismail A., Investigating membrane morphology and quantity of immobilized protein for the development of lateral flow immunoassay, Journal of Immunoassay and Immunochemistry, 33 (2012) pp. 48-58.
218. Ooi, B.S., Yatim, N.S.M., Ahmad, A.L. and Lai, S.O., Preparation of polyvinylidene fluoride membrane via dual coagulation bath system and its wettability study, Journal of Applied Polymer Science, 124 (2012) pp. E225– E232.
219. A.L.Ahmad, N.F. Che Lah, S. Ismail and B.S. Ooi, Membrane antifouling methods and alternatives: ultrasound approach, Separation & Purification Reviews, 41 (2012) pp. 318–346.
220. Y.H. Teow, A.L. Ahmad, J.K. Lim and B.S. Ooi, Preparation and characterization of PVDF/TiO2 mixed matrix membrane via in situ colloidal precipitation method, Desalination, 295 (2012) pp. 61–69.
221. A.L. Ahmad, B. Koohestani, S. Bhatia and B.S. Ooi, An environmental friendly oxidation of styrene by anhydrous hydrogen peroxide on  -alumina-supported Vx  Oy  nanoparticle catalysts with the adsorption of Rreaction water by anhydrous MgSO4: Optimization studies using RSM, Current Nanoscience, 8 (2012) pp. 441- 450.
222. J.K.  Lim,  Derek  C.J.  Chieh,  S.A.  Jalak,  P.Y.  Toh,  N.H.M.  Yasin,  B.W.  Ng  and  A.L.  Ahmad,  Rapid Magnetophoretic Separation of Microalgae, Small, 8 (2012) pp. 1683–1692
223. N.A. Oladoja, A.L. Ahmad, O.A. Adesina and R.O.A. Adelagun, Low-cost biogenic waste for phosphate capture from aqueous system, Chemical Engineering Journal, 209 (2012) , pp. 170 – 179
224. A.L. Ahmad, N.H. Mat Yasin, C.J.C. Derek and J.K. Lim, Crossflow microfiltration of microalgae biomass for biofuel production, Desalination, 302 (2012), pp. 65-70
225. Leo C.P., Cathie Lee W.P., A.L. Ahmad and  A.W. Wahab,  Polysulfone membranes blended with ZnO nanoparticles for reducing fouling by oleic acid, Separation and Purification Technology, 89 (2012), pp. 51-56
226. Ngang H.P., A.L. Ahmad, Low S.C. and Ooi B.S., Preparation of mixed-matrix membranes for micellar enhanced ultrafiltration based on response surface methodology, Desalination, 293 (2012), pp. 7-20
227. Ngang H.P., Ooi B.S., A.L. Ahmad and Lai S.O., Preparation of PVDF–TiO2 mixed-matrix membrane and its evaluation on dye adsorption and UV-cleaning properties,Chemical Engineering Journal,197(2012), 359-367
228. A.L. Ahmad, Z.A. Jawad, S.C. Low and S.H.S. Zein,   Prospect of Mixed Matrix Membrane towards CO2 Separation, Journal of Membrane Science & Technology (2012) 2:3
229. Thiam Leng Chew, Abdul Latif Ahmad& Subhash Bhatia, Microwave heating-synthesized zeolite membrane for CO2/CH4 separation, Desalination and Water Treatment, 47:1-3 (2012), pp. 139 -149
230. Toh, Pey Yi; Yeap, Swee Pin; Kong, Li Peng; Ng, Bee Wah; Derek, Chan Juinn Chieh; Ahmad, Abdul Latif& Lim, JitKang, Magnetophoretic removal of microalgae from fishpond water: Feasibility of high gradient and low gradient magnetic separation, Chemical Engineering Journal, 211-212 (2012) pp. 22-30
231. Yeap, Swee Pin; Ahmad, Abdul Latif; Ooi, Boon Seng & Lim, JitKang, Electrosteric Stabilization and Its Role on Cooperative Magnetophoresis of Colloidal Magnetic Nanoparticles, Langmuir, (2012) 28 (42) , pp. 14878- 14891
232. LiPeng Kong, XueJing Gan, Abdul Latif bin Ahmad, Bassim H. Hamed, Eric R. Evarts, BoonSeng Ooi, JitKang Lim, Design and synthesis of magnetic nanoparticles augmented microcapsule with catalytic and magnetic bifunctionalities for dye removal, Chemical Engineering Journal, 197 (2012), pp. 350-358
233. Teow, Y. H., Ahmad, A. L., Lim,J.K. & Ooi,B.S.,Studies on the surface properties of mixed-matrix membrane and its antifouling properties for humic acid removal.Journal of Applied Polymer Science,(2012),1-9.
234. Teow Y.H., B.S. Ooi, A.L. Ahmad, J.K. Lim Mixed-matrix membrane for humic acid removal : Influence of different types of TiO2 on Membrane Morphology and Performance, International Journal of Chemical Engineering and Applications, (2012) 3(6) pp. 374-379
235. A.L. Ahmad, W.K.W. Ramli, W.J.N. Fernando, W.R.W. Daud, Effect of ethanol concentration in water coagulation bath on pore geometry of PVDF membrane for Membrane Gas Absorption application in CO2 removal, Separation and Purification Technology,( 2012), (88), pp. 11-18.
236. Yeap, S.P., Toh, P.Y., Ahmad, A.L., Low, S.C., Majetich, S.A., Lim, J., Colloidal stability and magnetophoresis of gold-coated iron oxide nanorods in biological media, Journal of Physical Chemistry C, (2012), 116 (42) , pp. 22561-22569
237. Chew KK, Zein SHS, Ahmad A. L., McPhail DS, Abdullah MF The Electrochemical Studies of the Corrosion Resistance Behaviour of Hydroxyapatite Coatings on Stainless Steel Fabricated by Electrophoretic Deposition. Journal of Industrial and Engineering Chemistry, (2012).
238. Ahmad A.L, Ramli WKW. Hydrophobic PVDF membrane via two-stage soft coagulation bath system for Membrane Gas Absorption of CO2. Separation and Purification Technology, (2013)103 pp. 230-240
239. Ahmad A.L., E.M. Low, Abd Shukor S.R., Immobilization of phenylalanine dehydrogenase onto Eupergit CM for the synthesis of (S)-2-amino-4-phenylbutyric acid, Journal ofMolecularCatalysis. B: Enzymatic, (2013), 88 pp26-31.
240. Leo CP, Ahmad Kamil NH, Junaidi MUM, Kamal SNM, Ahmad A.L. The potential of SAPO-44 zeolite filler in fouling mitigation of polysulfone ultrafiltration membrane. Separation and Purification Technology (2013), 103, pp.84-91.
241. N.A.Ahmad, C.P.Leo, Ahmad A.L.Superhydrophobic alumina membrane by steam impingement: minimum resistance in microfiltration, Separation and Purification Technology (2013) 107, pp 186-194
242. Ahmad A.L., Adewole J.K., Ismail S., C.P. Leo, Membrane separation from natural gas: A state-of-the-art review on material development. Defect and Diffusion Forum, (2013) (333) pp 135-147
243. C.P. Leo, M.Z. Yahya, S.N.M. Kamal, A.L. Ahmad, A.W. Mohammad, Potential of nanofiltration and low pressure reverse osmosis in the removal of phosphorus for aquaculture. Water Science and Technology (2013) 67(4) pp 831-837
244. Junaidi, M. U. M., C. P. Leo, Kamal, S.N.M., Ahmad, A.L. & Chew, T.L. “Carbon dioxide removal from methane by using polysulfone/SAPO-44 mixed matrix membranes.Fuel Processing Technology (2013)112: 1-6.
245. Ahmad, A. L., Koohestani, B., Bhatia, S. & Ooi, B. S. Mixed matrix vanadium oxide catalytic nanocomposite membrane for styrene oxidation. Journal of Sol-Gel Science and Technology,(2013)pp. 1-15.
246. Ahmad, A. L., Ideris, N., Ooi, B. S., Low, S. C. & Ismail, A. Synthesis of polyvinylidene fluoride (PVDF) membranes for protein binding: Effect of casting thickness. Journal of Applied Polymer Science,(2013) 128, pp. 3438-3445.
247. Ahmad, A. L., Abdulkarim, A. A., Ooi, B. S. & Ismail, S. Recent Development in Additives Modifications of Polyethersulfone Membrane for Flux Enhancement. Chemical Engineering Journal, (2013) 223, pp. 246-267.
248. Ahmad, A.L., Harith N.M., Ooi B.S. & Leo C.P., Fabrication and characterization of superhydrophoic layer of low density polyethylene on polypropylene hollow fiber membrane. Caspian Journal of Applied Sciences Research, (2013) 2(4), pp.01-07.
249. Ahmad, A.L., Zeinab, A.J., S.C.Low & Sharif H.S.Z., The functionalization of beta-cyclodextrins on multi walled carbon nanotubes:Effects of the dispersant and non aqueous media.Current Nanoscience(2013),9, pp. 93- 102
250. M.U.M.Junaidi, C.P.Leo, S.N.M.Kamal &A.L.Ahmad, Fouling mitigation in humic acid ultrafiltration using polysulfune/SAPO-34 mixed matrix membrane. Water Science & Technology (2013), 67(9) pp. 2102-2109
251. A.L. Ahmad, Jimoh A., Leo C.P. & Suzy I., Current challenges in membrane separation of CO2 from natural gas: A Review, International Journal of Greenhouse Gas Control (2013), 17, pp.46-65.
252. S.C. Low, S. Roswani, Y. Thandaithabany, J.K. Lim, A.L. Ahmad, A. Ismail, Electrophoretic Interactions between Nitrocellulose Membranes and Proteins: Biointerface Analysis and Protein Adhesion Properties,Colloids and Surfaces B: Biointerfaces,(2013), 110, pp.248-253
253. Abdulkarin,A.A,, Ahmad, A.L., Ismail, S., Ooi, B.S., Preparation and characterization of polyethersulfone membrane containing zinc oxide nanoparticles and polyvinylpyrrolidone. Jurnal Teknologi (Sciences and Engineering), 2013, 65 (4), pp.. 13-16
254. Ahmad, A.L., N.H. Mat Yasin, C.J.C. Derek, and J.K. Lim, Harvesting of microalgal biomass using MF membrane: Kinetic model, CDE model and extended DLVO theory. Journal of Membrane Science, 2013. 446(0): p. 341-349.
255. Ahmad, A.L., N.H. Mat Yasin, C.J.C. Derek, and J.K. Lim, Chemical cleaning of a cross-flow microfiltration membrane fouled by microalgal biomass. Journal of the Taiwan Institute of Chemical Engineers (2014). 45(1): p. 233-241.
256. Ahmad, N.A., Leo, C.P., Ahmad, A.L. Synthesis of superhydrophobic alumina membrane: Effects of sol-gel coating, steam impingement and water treatment. Applied Surface Science (2013) 284, pp. 556-564
257. S.N.M. Kamal, C.P. Leo, A.L. Ahmad, and M.U.M. Junaidi, Effects of THF as cosolvent in the preparation of polydimethylsiloxane/polyethersulfone membrane for gas separation. Polymer Engineering & Science (2014), 54(9): p. 2177-2186.
258. Chen,J.J., Ahmad, A.L., Ooi, B.S. Poly(N-isopropylacrylamide-co-acrylic acid) hydrogels for copper ion adsorption: Equilibrium isotherms, kinetic and thermodynamic studies. Journal of Environmental Chemical Engineering (2013), 1(3), pp. 339-348
259. Ahmad, A.L., Z.A.Jawad, S.C.Low & S.H.S.Zein, A cellulose acetate/multi-walled carbon nanotube mixed matrix membrane for CO2/N2 separation. Journal of Membrane Science, 451 (2014), 451(0), pp 55-66
260. Suhaimi, H.S.M., C.P. Leo, and A.L. Ahmad, Preparation and characterization of polysulfone mixed matrix membrane incorporated with palladium nanoparticles in the inversed microemulsion for hydrogen separation. Chemical Engineering and Processing: Process Intensification, 2014. 77(0): p. 30-37.
261. B.H.X. Che, S.P. Yeap, A.L. Ahmad, and J. Lim, Layer-by-layer assembly of iron oxide magnetic nanoparticles decorated silica colloid for water remediation. Chemical Engineering Journal (2014), 243: p. 68-78.
262. Junaidi, M. U. M., Leo, C. P., Ahmad, A. L., Kamal, S. N. M. & Chew, T. L. Carbon dioxide separation using asymmetric polysulfone mixed matrix membranes incorporated with SAPO-34 zeolite. Fuel Processing Technology (2014), 118, p. 125-132.
263. Suhaimi, H.S.M., L.C. Peng, and A.L. Ahmad, Preparation and Characterization of Polysulfone Mixed Matrix Membrane Incorporated with Thermodynamically Stable Nano-Palladium for Hydrogen Separation. Advanced Materials Research,(2014) 832: p. 143-148.
264. 264      Toh, P.Y., B.W. Ng, C.H. Chong, A.L. Ahmad, J.-W. Yang, C.J. Chieh Derek, and J. Lim, Magnetophoretic separation of microalgae: the role of nanoparticles and polymer binder in harvesting biofuel. RSC Advances, (2014), 4(8): p. 4114-4121.
265. Ahmad,A.L., Yasin, N.H.M., Derek, C.J.C., Lim, J.K., Kinetic studies and thermodynamics of oil extraction and transesterification of Chlorella sp. for biodiesel production, Environmental Technology (United Kingdom) (2014), 35 (7), pp 891-897.
266. N.A. Oladoja, R.O.A. Adelagun, A.L. Ahmad, E.I. Unuabonah, and H.A. Bello, Preparation of Magnetic, Macro-Reticulated Cross-Linked Chitosan for  Tetracycline Removal from  Aquatic  Systems. Colloids and Surfaces B: Biointerfaces (2014), 117: p. 51-59.
267. Ahmad, A.L., N.H. Mat Yasin, C.J.C. Derek, and J.K. Lim, Chemical cleaning of a cross-flow microfiltration membrane fouled by microalgal biomass. Journal of the Taiwan Institute of Chemical Engineers, 2014. 45(1): p. 233-241.
268. Ahmad, A.L., A. Kusumastuti, M.M.H. Shah Buddin, C.J.C. Derek, and B.S. Ooi, Emulsion liquid membrane based on a new flow pattern in a counter rotating Taylor-Couette column for cadmium extraction. Separation and Purification Technology (2014), 127(2014): p. 46-52.
269. H.S.M. Suhaimi, M.N.I.M. Khir, C.P. Leo, and A.L. Ahmad, Preparation and characterization of polysulfone mixed-matrix membrane incorporated  with palladium nanoparticles dispersed in polyvinylpyrrolidone  for hydrogen separation. Journal of Polymer Research (2014), 21(5): p. 1-8.
270. A.L. Ahmad, J.K. Adewole, C.P. Leo, A.S. Sultan, and S. Ismail, Preparation and gas transport properties of dual-layer polysulfone membranes for high pressure CO2 removal from natural gas. Journal of Applied Polymer Science (2014), 131(20): p. 40924-40934.
271. Chen, J.J., A.L. Ahmad, and B.S. Ooi, Thermo-responsive properties of poly(N-isopropylacrylamide-co-acrylic acid) hydrogel and its effect on copper ion removal and fouling of polymer-enhanced ultrafiltration. Journal of Membrane Science (2014). 469(0): p. 73-79.
272. H. P. Ngang, A. L. Ahmad, S. C. Low, B .S. Ooi,The Influence of PEG Additive on the Morphology of PVDF Ultrafiltration Membranes and Its Antifouling Properties Towards Proteins Separation. Jurnal Teknologi (2014), 20 (2)
273. A. L. Ahmad, K. N. Hussain, B. S. Ooi, Analysis of Oil Content in Ultrafiltered Water Based on Oil Emulsion using Fourier Transform Infrared Spectroscopy (FTIR). Jurnal Teknologi, 2014. 70 (2)
274. P.Y. Toh, B.W. Ng, A.L. Ahmad, D.C.J. Chieh, and J. Lim, The role of particle-to-cell interactions in dictating nanoparticle aided magnetophoretic separation of microalgal cells. Nanoscale (2014), 6(21): p. 12838-12848.
275. N.A. Oladoja, A.L. Ahmad, and A.O. Adesina, Biogenic derived binary metal oxide as a reactive material for remediation of pyrophosphate contaminated aqua system. Journal of Water Process Engineering (2014), 3(2014): p. 82-89.
276. S.F. Azha, A.L. Ahmad, and S. Ismail, Thin coated adsorbent layer: characteristics and performance study. Desalination and Water Treatment (2014), 55(4): p. 956-969.
277. Ahmad, A.L., Harith N.M., Ooi B.S. & Leo C.P., Membrane Wetting In Carbon Dioxide Absorption Process Using Membrane Contactors: A Review (Accepted on 14 July 2014)
278. H.X. Che, S.P. Yeap, M.S. Osman, A.L. Ahmad, and J. Lim, Directed Assembly of Bifunctional Silica–Iron Oxide Nanocomposite with Open Shell Structure. ACS Applied Materials & Interfaces (2014), 6(19): p. 16508- 16518.
279. T.L. Chew, A.L. Ahmad, S. Bhatia. Development of Ba-SAPO-34 Zeolite Membrane for Separation of CO2 in the Binary Gas Mixtures.Jurnal Teknologi (Sciences and Engineering) (2014), 69(6): p. 5-10
280. S.P. Yeap, S.S. Leong, A.L. Ahmad, B.S. Ooi, and J. Lim,  On Size Fractionation of Iron Oxide Nanoclusters by Low Magnetic Field Gradient. The Journal of Physical Chemistry C (2014), 118(41): p. 24042-24054.
281. T.L. Chew and A.L. Ahmad, Ba-SAPO-34 Zeolite Membrane for CO2/N2 Separation: Process Optimization. Applied Mechanics and Materials (2014) p. 648-652.
282. Che, H.X., S.P. Yeap, M.S. Osman, A.L. Ahmad, and J. Lim, Directed Assembly of Bifunctional Silica–Iron Oxide Nanocomposite with Open Shell Structure. ACS Applied Materials & Interfaces (2014), 6(19): p. 16508- 16518.
283. Ahmad, A. L., Yasin, N. H. M., Derek, C. J. C. & Lim, J. K., Comparison of harvesting methods for microalgae Chlorella sp. and its potential use as a biodiesel feedstock. Environmental Technology (2014). 35(17): p. 2244- 2253.
284. Ahmad, A. L., Abdulkarim, A. A., Ismail, S. & Ooi, B. S., Preparation And Characterisation Of Pes-Zno Mixed Matrix Membranes For Humic Acid Removal. Desalination And Water Treatment (2014), 54(12) :p. 1-12.
285. Z.A. Jawad, A.L. Ahmad, S.C. Low, T.L. Chew, and S.H.S. Zein, Influence of solvent exchange time on mixed matrix membrane separation performance for CO2/N2 and a kinetic sorption study. Journal of Membrane Science (2015), 476(0): p. 590-601.
286. Z.A. Jawad, A.L. Ahmad, S.C. Low, and S.H.S. Zein, Incorporation of inorganic carbon nanotubes fillersinto the CA polymeric matrix for improvement in CO2/N2 separation. Journal of Current Nanoscience (2015), 11(1): p. 69-79.
287. M.U.M. Junaidi, C.P. Leo, A.L. Ahmad, and N.A. Ahmad, Fluorocarbon functionalized SAPO-34 zeolite incorporated in asymmetric mixed matrix membranes for carbon dioxide separation in wet gases. Microporous and Mesoporous Materials (2015), 206(0): p. 23-33.
288. 288      Y.H. Teow, A.L. Ahmad, J.K. Lim, H.P. Ngang, L.Y. Susan, and B.S. Ooi, Hydroxyl functionalized PVDF– TiO2 ultrafiltration membrane and its antifouling properties. Journal of Applied Polymer Science (2015), 132(21): p. 41844-41855.
289. Ahmad, A.L., Adewole, J. K., Leo, C. P., &Ismail, S.,Model-Based Analysis of Polymeric Membranes Performance in High Pressure CO2 Removal from Natural Gas, Journal of Polymer Research (2015), 22(3) pp.31-41
290. N.B. Wah, A.L. Ahmad, D.C.J. Chieh, and A.T.S. Hwai, Changes in Lipid Profiles of a Tropical Benthic Diatom in different Cultivation Temperature. Asian Journal of Applied Science & Engineering (2015), 4(2): p. 11.
291. A.L. Ahmad, M.M.H. Shah Buddin, B.S. Ooi, and A. Kusumastuti, Cadmium Removal using Vegetable Oil Based Emulsion Liquid Membrane (ELM): Membrane Breakage Investigation. Jurnal Teknologi (2015), 75(1): p. 39-46.
292. Q.H. Ng, J.K. Lim, A.L. Ahmad, B.S. Ooi, and S.C. Low, Magnetic nanoparticles augmented composite membranes in removal of organic foulant through magnetic actuation. Journal of Membrane Science (2015), 493: p. 134-146.
293. A.L. Ahmad, M.M.H. Shah Buddin, and B.S. Ooi,  Extraction of Cd(II) Ions by Emulsion Liquid Membrane (ELM) using Aliquat 336 as Carrier. American Journal of Chemistry (2015), 3A (5): p. 1-6.
294. N.A. Oladoja, R.O.A. Adelagun, A.L. Ahmad, and I.A. Ololade, Phosphorus recovery from aquaculture wastewater using thermally treated gastropod shell. Process Safety and Environmental Protection (2015), 98: p. 296-308.
295. G.W. Lim, J.K. Lim, A.L. Ahmad, and D.J.C. Chan, Influences of diatom frustule morphologies on protein adsorption behavior. Journal of Applied Phycology (2015), 27(2): p. 763-775.
296. G.W. Lim, J.K. Lim, A.L. Ahmad, and D.J.C. Chan, Molecularly imprinted polymer layers using Navicula sp. frustule as core material for selective recognition of lysozyme. Chemical Engineering Research and Design (2015), 101: p. 2-14.
297. A. L. Ahmad, I. Idris, C. Y. Chan and Ismail.S. Reclamation from Palm Oil Mill Effluent Using an Integrated Zero Discharge Membrane-Based Process. Polish Journal of Chemical Technology (2015).
298. J.K. Adewole, A.L. Ahmad, S. Ismail, C.P. Leo, and A.S. Sultan, Comparative studies on the effects of casting solvent on physico-chemical and gas transport properties of dense polysulfone membrane used for CO2/CH4 separation. Journal of Applied Polymer Science (2015), 132(27): p. n/a-n/a.
299. A.L. Ahmad, J.K. Adewole, C.P. Leo, S. Ismail, A.S. Sultan, and S.O. Olatunji, Prediction of plasticization pressure of polymeric membranes for CO2 removal from natural gas. Journal of Membrane Science (2015), 480(0): p. 39-46.
300. S.P. Yeap, A.L. Ahmad, B.S. Ooi, and J.K. Lim, Manipulating cluster size of polyanion-stabilized Fe3O4 magnetic nanoparticle clusters via electrostatic-mediated assembly for tunable magnetophoresis behavior. Journal of Nanoparticle Research (2015), 17(10).
301. S.F. Azha, A.L. Ahmad, and S. Ismail, A new approach of thin coated adsorbent layer for batch adsorption using basic dye. ASEAN Journal of Chemical Engineering (2015), 15(1): p. 10-21.
302. A.L. Ahmad, N. Ideris, O.B. Seng, L.S. Chun, and A. Ismail, Influence of the physicochemical environment on membrane-protein binding: Investigation using a fabricated PVDF membrane. Journal of Polymer Engineering (2015), 35(4): p. 339-347.
303. C.C. Chai, Z.H. Lee, P.Y. Toh, D.C.J. Chieh, A.L. Ahmad, and J.K. Lim, Effects of dissolved organic matter and suspended solids on the magnetophoretic separation of microalgal cells from an aqueous environment. Chemical Engineering Journal (2015), 281: p. 523-530.
304. A. L. Ahmad, H. X. Che, S. J. Gwee and J. K. Lim, Guided assembly of magnetic nanocomposite with open shell structure for water remediation. Chemical Engineering Transactions (2015), 45.
305. A. L. Ahmad, N. F. C. Lah, and S. C. Low, Molecular Imprinted Polymer for Atrazine Detection Sensor: Preliminary Study. Chemical Engineering Transactions (2015), 45.
306. L. E. F. Jun and A. L. Ahmad, Natural, Biodegradable and Non-Toxic Coagulant from g. Hylocereus Foliage: Optimisation on Coagulant Preparation. Chemical Engineering Transactions (2015), 45.
307. Y. T. Ong, A. L. Ahmad, S. H. S. Zein and H. Tan, Authors' Reply to the Letter to the Editor: Reply to "Non green perspective on biodegradable polymer nanocomposites". Brazilian Journal of Chemical Engineering (2015), 32(4): p. 976-976.
308. J. K. Adewole and A. L. Ahmad, Process modeling and optimization studies of high pressure membrane separation of CO2 from natural gas. Korean Journal of Chemical Engineering (2016).
309. A.L. Ahmad, A. A. Abdulkarim, S. Ismail and O. B. Seng, Optimization of PES/ZnO mixed matrix membrane preparation using response surface methodology for humic acid removal. Korean Journal of Chemical Engineering (2016).
310. A. L. Ahmad, N. Ideris, B. S. Ooi, S. C. Low and A. Ismail, Optimization of polyvinylidene fluoride (PVDF) membrane fabrication for protein binding using statistical experimental design. J Immunoassay Immunochem (2016), 37(4): p. 421-37.
311. A. L. Ahmad, N. Ideris, B. S. Ooi, S. C. Low and A. Ismail, Impact of membrane pore structure on protein detection sensitivity of affinity-based immunoassay. Polish Journal of Chemical Technology (2016), 18(2): p. 97-103.
312. A. L. Ahmad, M. M. H. Shah Buddin, B. S. Ooi and A. Kusumastuti, Cadmium removal from aqueous solution by emulsion liquid membrane (ELM): influence of emulsion formulation on cadmium removal and emulsion swelling. Desalination and Water Treatment (2016): p. 1-10.
313. N. A. Ahmad, C. P. Leo, A. L. Ahmad and A. W. Mohammad, Separation of CO2 from hydrogen using membrane gas absorption with PVDF/PBI membrane. International Journal of Hydrogen Energy (2016), 41(8): p. 4855-4861.
314. N. A. Ahmad, C. P. Leo, M. U. M. Junaidi and A. L. Ahmad, PVDF/PBI membrane incorporated with SAPO- 34 zeolite for membrane gas absorption. Journal of the Taiwan Institute of Chemical Engineers (2016), 63: p. 143-150.
315. G. W. Lim, J. K. Lim, A. L. Ahmad and D. J. C. Chan, Fluorescent molecularly imprinted polymer based on Navicula sp. frustules for optical detection of lysozyme. Analytical and Bioanalytical Chemistry (2016), 408(8): p. 2083-2093.
316. Q. H. Ng, J. K. Lim, A. L. Ahmad and S. C. Low, Stability and fouling mechanism of magnetophoretic- actuated PES composite membrane in pH-dependent aqueous medium. Journal of Membrane Science (2016), 508: p. 40-50.
317. Y. T. Ong, A. L. Ahmad, S. H. S. Zein, K. Sudesh and S. H. Tan, Rebuttal to the comment on article “Poly(3- hydroxybutyrate)-functionalised multi-walled carbon nanotubes/chitosan green nanocomposite membranes and their application in pervaporation”. Separation and Purification Technology (2016), 158: p. 94-95.
318. S. S. Shenvi, A. M. Isloor, A. L. Ahmad, B. Garudachari and A. F. Ismail, Influence of palm oil fuel ash, an agro-industry waste on the ultrafiltration performance of cellulose acetate butyrate membrane. Desalination and Water Treatment (2016): p. 1-13.
319. P.C. Tan, S.C. Low, A.L. Ahmad, B.S. Ooi and Z.A. Jawad. “Correlation Between Polymer Packing And Gas Transport Properties For CO2/N2 Separation In Glassy Fluorinated Polyimide Membrane”. Journal of Engineering Science & Technology (2016)
320. Y. H. Teow, B. S. Ooi and A. L. Ahmad, Fouling behaviours of PVDF-TiO2 mixed-matrix membrane applied to humic acid treatment. Journal of Water Process Engineering (2016).
321. P. Y. Toh, W. Y. Tai, A. L. Ahmad, J. K. Lim and D. J. Chan, Toxicity of bare and surfaced functionalized iron oxide nanoparticles towards microalgae. Int J Phytoremediation (2016), 18(6): p. 643-50.
322. A. L. Ahmad, A. A. Abdulkarim, Z. M. H. Mohd Shafie and B. S. Ooi, Fouling evaluation of PES/ZnO mixed matrix hollow fiber membrane. Desalination (2016).
323. N. A. Oladoja, R. O. A. Adelagun, A. L. Ahmad and I. A. Ololade, Green reactive material for phosphorus capture and remediation of aquaculture wastewater. Process Safety and Environmental Protection (2016).
324. Chew, T.L., J.W. Lim, and A.L. Ahmad, Ba-SAPO-34 Zeolite Membrane For CO2 And N2 Permeation. Malaysian Journal Of Analytical Sciences, 2016. 20(6): p. 1397-1404.
325. Otitoju, T.A., A.L. Ahmad, and B.S. Ooi, Polyvinylidene fluoride (PVDF) membrane for oil rejection from oily wastewater: A performance review. Journal of Water Process Engineering, 2016. 14: p. 41-59.
326. Farooqui, U.R., A.L. Ahmad, and N.A. Hamid, Challenges and potential advantages of membranes in lithium air batteries: A review. Renewable and Sustainable Energy Reviews, 2016.
327. H. P. Ngang, A. L. Ahmad, S. C. Low and B. S. Ooi, Preparation of thermoresponsive PVDF/SiO2-PNIPAM mixed matrix membrane for saline oil emulsion separation and its cleaning efficiency. Desalination (2017), 408: p. 1-12.
328. Otitoju, T.A., A.L. Ahmad, and B.S. Ooi, Superhydrophilic (superwetting) surfaces: A review on fabrication and application. Journal of Industrial and Engineering Chemistry, 2017. 47: p. 19-40.
329. J. K. Adewole and A. L. Ahmad, Polymeric membrane materials selection for high-pressure CO2 removal from natural gas. Journal of Polymer Research (2017), 24(5).
330. U. R. Farooqui, A. L. Ahmad and N. A. Hamid, Effect of polyaniline (PANI) on Poly(vinylidene fluoride-co- hexaflouro propylene) (PVDF-co-HFP) polymer electrolyte membrane prepared by breath figure method. Polymer Testing (2017), 60: p. 124-131.
331. M. S. Abdul Wahab, S. Abdul Rahman and A. L. Ahmad, Biomethane Purification Using PVDF/Pebax 1657 Thin Film Composite Membrane. Journal of Physical Science (2017), 28(Suppl. 1): p. 39-51.
332. A. L. Ahmad and Z. M. H. Mohd Shafie, Effect of Air Gap Distance on PES/PVA Hollow Fibre Membrane's Morphology and Performance. Journal of Physical Science (2017), 28(Suppl. 1): p. 185-199.
333. A. L. Ahmad, S. Y. Olatunji and Z. A. Jawad, Thickness Effect on the Morphology and Permeability of CO2/N2 Gases in Asymmetric Polyetherimide Membrane. Journal of Physical Science (2017), 28(Suppl. 1): p. 201-213.
334. N. A. Ahmad, A. N. Mohd Noh, C. P. Leo and A. L. Ahmad, CO2 removal using membrane gas absorption with PVDF membrane incorporated with POSS and SAPO-34 zeolite. Chemical Engineering Research and Design (2017), 118: p. 238-247.
335. N. N. R. Ahmad, C. P. Leo, A. W. Mohammad and A. L. Ahmad, Modification of gas selective SAPO zeolites using imidazolium ionic liquid to develop polysulfone mixed matrix membrane for CO2 gas separation. Microporous and Mesoporous Materials (2017), 244: p. 21-30.
336. Z. A. Jawad, A. L. Ahmad, L. Siew Chun, E. W. Tung Seng, B. S. Chek Fong, L. Sugu and C. Thiam Leng, Binding Stability of β-CD on MWCNTS: Role of Washing Cycle on the β-CD Coating. Journal of Physical Science (2017), 28(Suppl. 1): p. 145-153.
337. T. Peng Chee, O. Boon Seng, A. L. Ahmad and L. Siew Chun, Size Control and Stability Study of Zeolitic Imidazolate Framework-8 to Prepare Mixed Matrix Membrane. Journal of Physical Science (2017), 28(Suppl. 1): p. 215-226.
338. A. Rosli, A. L. Ahmad, L. Jit Kiang and L. Siew Chun, Advances in Liquid Absorbents for CO2 Capture: A Review. Journal of Physical Science (2017), 28(Suppl. 1): p. 121-144.
339. H. S. M. Suhaimi, C. P. Leo and A. L. Ahmad, Hydrogen Purification Using Polybenzimidazole Mixed- Matrix Membranes with Stabilized Palladium Nanoparticles. Chemical Engineering & Technology (2017), 40(4): p. 631-638.