Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance
Fouling not only deteriorates the membrane structure but also compromises the quality of the permeate and has deleterious consequences on the membrane operation. In the current study, a commercial thin film composite nanofiltration membrane (NF90) was modified by sequentially depositing oppositely c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/21/3728 |
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| author | Umair Baig Abdul Waheed Hassan A. Salih Asif Matin Ali Alshami Isam H. Aljundi |
| author_facet | Umair Baig Abdul Waheed Hassan A. Salih Asif Matin Ali Alshami Isam H. Aljundi |
| author_sort | Umair Baig |
| collection | DOAJ |
| description | Fouling not only deteriorates the membrane structure but also compromises the quality of the permeate and has deleterious consequences on the membrane operation. In the current study, a commercial thin film composite nanofiltration membrane (NF90) was modified by sequentially depositing oppositely charged polycation (poly(allylamine hydrochloride)) and polyanion (poly(acrylic acid)) polyelectrolytes using the layer-by-layer assembly method. The water contact angle was decreased by ~10° after the coating process, indicating increased hydrophilicity. The surface roughness of the prepared membranes decreased from 380 nm (M-0) to 306 nm (M-10) and 366 nm (M-20). M-10 membrane showed the highest permeate flux of 120 L m<sup>−2</sup> h<sup>−1</sup> with a salt rejection of >98% for MgSO<sub>4</sub> and NaCl. The fabricated membranes M-20 and M-30 showed 15% improvement in fouling resistance and maintained the initial permeate flux longer than the pristine membrane. |
| first_indexed | 2024-03-10T05:54:57Z |
| format | Article |
| id | doaj.art-8a191bdfb3cd462689a6493c1305561f |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T05:54:57Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-8a191bdfb3cd462689a6493c1305561f2023-11-22T21:27:50ZengMDPI AGPolymers2073-43602021-10-011321372810.3390/polym13213728Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling ResistanceUmair Baig0Abdul Waheed1Hassan A. Salih2Asif Matin3Ali Alshami4Isam H. Aljundi5Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaInterdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaCollege of Engineering, Khalifa University, Abu Dhabi 127788, United Arab EmiratesInterdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaChemical Engineering Department, University of North Dakota, Grand Forks, ND 58202, USAInterdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaFouling not only deteriorates the membrane structure but also compromises the quality of the permeate and has deleterious consequences on the membrane operation. In the current study, a commercial thin film composite nanofiltration membrane (NF90) was modified by sequentially depositing oppositely charged polycation (poly(allylamine hydrochloride)) and polyanion (poly(acrylic acid)) polyelectrolytes using the layer-by-layer assembly method. The water contact angle was decreased by ~10° after the coating process, indicating increased hydrophilicity. The surface roughness of the prepared membranes decreased from 380 nm (M-0) to 306 nm (M-10) and 366 nm (M-20). M-10 membrane showed the highest permeate flux of 120 L m<sup>−2</sup> h<sup>−1</sup> with a salt rejection of >98% for MgSO<sub>4</sub> and NaCl. The fabricated membranes M-20 and M-30 showed 15% improvement in fouling resistance and maintained the initial permeate flux longer than the pristine membrane.https://www.mdpi.com/2073-4360/13/21/3728polyelectrolytespoly(allylamine hydrochloride)poly(acrylic acid)membrane foulingnanofiltrationsurface modification |
| spellingShingle | Umair Baig Abdul Waheed Hassan A. Salih Asif Matin Ali Alshami Isam H. Aljundi Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance Polymers polyelectrolytes poly(allylamine hydrochloride) poly(acrylic acid) membrane fouling nanofiltration surface modification |
| title | Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance |
| title_full | Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance |
| title_fullStr | Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance |
| title_full_unstemmed | Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance |
| title_short | Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance |
| title_sort | facile modification of nf membrane by multi layer deposition of polyelectrolytes for enhanced fouling resistance |
| topic | polyelectrolytes poly(allylamine hydrochloride) poly(acrylic acid) membrane fouling nanofiltration surface modification |
| url | https://www.mdpi.com/2073-4360/13/21/3728 |
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