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
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polyelectrolytes poly(allylamine hydrochloride) poly(acrylic acid) membrane fouling nanofiltration surface modification Organic chemistry QD241-441
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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Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance

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