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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Autores principales: Umair Baig, Abdul Waheed, Hassan A. Salih, Asif Matin, Ali Alshami, Isam H. Aljundi
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/8a191bdfb3cd462689a6493c1305561f
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spelling oai:doaj.org-article:8a191bdfb3cd462689a6493c1305561f2021-11-11T18:45:21ZFacile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance10.3390/polym132137282073-4360https://doaj.org/article/8a191bdfb3cd462689a6493c1305561f2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3728https://doaj.org/toc/2073-4360Fouling 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.Umair BaigAbdul WaheedHassan A. SalihAsif MatinAli AlshamiIsam H. AljundiMDPI AGarticlepolyelectrolytespoly(allylamine hydrochloride)poly(acrylic acid)membrane foulingnanofiltrationsurface modificationOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3728, p 3728 (2021)
institution DOAJ
collection DOAJ
language EN
topic polyelectrolytes
poly(allylamine hydrochloride)
poly(acrylic acid)
membrane fouling
nanofiltration
surface modification
Organic chemistry
QD241-441
spellingShingle polyelectrolytes
poly(allylamine hydrochloride)
poly(acrylic acid)
membrane fouling
nanofiltration
surface modification
Organic chemistry
QD241-441
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
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.
format article
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
title 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_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_sort facile modification of nf membrane by multi-layer deposition of polyelectrolytes for enhanced fouling resistance
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/8a191bdfb3cd462689a6493c1305561f
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