Development of loose nanofiltration PVDF hollow fiber membrane for dye/salt separation

Zhang, P; Rajabzadeh, S; Song, Q; Gonzales, RR; Jia, Y; Xiang, S; Li, Z; Matsuyama, H

Development of loose nanofiltration PVDF hollow fiber membrane for dye/salt separation

Zhang, P Rajabzadeh, S Song, Q Gonzales, RR Jia, Y Xiang, S Li, Z Matsuyama, H

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Desalination, 2023, 549, pp. 116315
Issue Date:: 2023-03-01

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Field	Value	Language
dc.contributor.author	Zhang, P
dc.contributor.author	Rajabzadeh, S
dc.contributor.author	Song, Q
dc.contributor.author	Gonzales, RR
dc.contributor.author	Jia, Y
dc.contributor.author	Xiang, S
dc.contributor.author	Li, Z
dc.contributor.author	Matsuyama, H
dc.date.accessioned	2023-01-26T00:05:32Z
dc.date.available	2023-01-26T00:05:32Z
dc.date.issued	2023-03-01
dc.identifier.citation	Desalination, 2023, 549, pp. 116315
dc.identifier.issn	0011-9164
dc.identifier.uri	http://hdl.handle.net/10453/165435
dc.description.abstract	The fabrication of loose nanofiltration (LNF) membranes for effective separation of dye/salt wastewater mixtures remains a great challenge. In this study, a new method for preparing a LNF membrane is proposed by combining co-extrusion technology and chemical cross-linking. Poly(styrene maleic anhydride (PSMA), an amphipathic copolymer was first entrapped onto the outer surface of poly(vinylidene fluoride) (PVDF) hollow fiber membranes (HFMs) by spinning using a triple orifice spinneret. Subsequently, the prepared PVDF/PSMA membranes were cross-linked using polyethylenimine (PEI) or poly(allylamine hydrochloride) (PAH). Finally, the chemical structure, morphology, hydrophilicity, zeta potential, and pore size were studied systematically. The small pore size and strong positive charge of the prepared membranes contributed to the high rejection of various dyes (>99 %) and low salt rejection (<8.5 %). The prepared membranes also exhibited excellent stability during long-term filtration. Antifouling experiments demonstrated that the prepared LNF membrane had good fouling reduction properties against bovine serum albumin (BSA) and lysozyme (LYZ). This study provides new perspectives for the design of useful LNF HFMs for the treatment of dye/salt wastewater mixtures.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Desalination
dc.relation.isbasedon	10.1016/j.desal.2022.116315
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.title	Development of loose nanofiltration PVDF hollow fiber membrane for dye/salt separation
dc.type	Journal Article
utslib.citation.volume	549
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2025-03-01T00:00:00+1000Z
dc.date.updated	2023-01-26T00:05:26Z
pubs.publication-status	Accepted
pubs.volume	549

Abstract:

The fabrication of loose nanofiltration (LNF) membranes for effective separation of dye/salt wastewater mixtures remains a great challenge. In this study, a new method for preparing a LNF membrane is proposed by combining co-extrusion technology and chemical cross-linking. Poly(styrene maleic anhydride (PSMA), an amphipathic copolymer was first entrapped onto the outer surface of poly(vinylidene fluoride) (PVDF) hollow fiber membranes (HFMs) by spinning using a triple orifice spinneret. Subsequently, the prepared PVDF/PSMA membranes were cross-linked using polyethylenimine (PEI) or poly(allylamine hydrochloride) (PAH). Finally, the chemical structure, morphology, hydrophilicity, zeta potential, and pore size were studied systematically. The small pore size and strong positive charge of the prepared membranes contributed to the high rejection of various dyes (>99 %) and low salt rejection (<8.5 %). The prepared membranes also exhibited excellent stability during long-term filtration. Antifouling experiments demonstrated that the prepared LNF membrane had good fouling reduction properties against bovine serum albumin (BSA) and lysozyme (LYZ). This study provides new perspectives for the design of useful LNF HFMs for the treatment of dye/salt wastewater mixtures.

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http://hdl.handle.net/10453/165435