Influence of silica nanoparticles on the desalination performance of forward osmosis polybenzimidazole membranes

Daer, S; Akther, N; Wei, Q; Shon, HK; Hasan, SW

Influence of silica nanoparticles on the desalination performance of forward osmosis polybenzimidazole membranes

Daer, S Akther, N

Wei, Q Shon, HK Hasan, SW

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Desalination, 2020, 491
Issue Date:: 2020-10-01

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Field	Value	Language
dc.contributor.author	Daer, S
dc.contributor.author	Akther, N https://orcid.org/0000-0001-8706-9542
dc.contributor.author	Wei, Q
dc.contributor.author	Shon, HK
dc.contributor.author	Hasan, SW
dc.date.accessioned	2020-09-07T08:30:09Z
dc.date.available	2020-09-07T08:30:09Z
dc.date.issued	2020-10-01
dc.identifier.citation	Desalination, 2020, 491
dc.identifier.issn	0011-9164
dc.identifier.issn	1873-4464
dc.identifier.uri	http://hdl.handle.net/10453/142561
dc.description.abstract	© 2020 Elsevier B.V. Polybenzimidazole (PBI) is a chemically and thermally stable polymer, which is being considered for forward osmosis (FO) seawater desalination in regions with high seawater temperatures and salinities. In this work, FO flat sheet membranes were fabricated using non-solvent induced phase separation (NIPS) method from PBI dope solution incorporated with silica nanoparticles (SNPs) at different concentrations (0, 0.5, 1 and 2 wt%). The influence of draw solution concentration, cross-flow velocity and membrane cell orientation on the performance of pristine PBI and PBI/SNP membranes was examined. Results showed that the performance of the PBI/SNP membranes improved compared to the pristine PBI membrane. Addition of 0.5 wt% of SNPs to PBI membranes (S0.5) reduced the membrane's structural parameter (809.4 μm vs. 1193.2 μm), augmented the tensile strength (31.9 MPa vs. 27.3 MPa), and increased water flux by two folds (16.9 Lm−2 h−1 vs. 7.4 Lm−2 h−1) compared to the pristine PBI membrane (S0). Given the thermal stability of the PBI/SNP membrane along with its improved water permeation performance, the modified membrane offers a promising option for the FO process in hot and arid zones.
dc.language	English
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/ARC IH170100009
dc.relation	King Abdullah University of Science and TechnologyNA
dc.relation	http://purl.org/au-research/grants/arc/IH170100009
dc.relation.ispartof	Desalination
dc.relation.hasversion	Accepted manuscript version	en
dc.relation.isbasedon	10.1016/j.desal.2020.114441
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.title	Influence of silica nanoparticles on the desalination performance of forward osmosis polybenzimidazole membranes
dc.type	Journal Article
utslib.citation.volume	491
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
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	2022-06-28T00:00:00+1000Z
dc.date.updated	2020-09-07T08:30:05Z
pubs.publication-status	Accepted
pubs.volume	491

Abstract:

© 2020 Elsevier B.V. Polybenzimidazole (PBI) is a chemically and thermally stable polymer, which is being considered for forward osmosis (FO) seawater desalination in regions with high seawater temperatures and salinities. In this work, FO flat sheet membranes were fabricated using non-solvent induced phase separation (NIPS) method from PBI dope solution incorporated with silica nanoparticles (SNPs) at different concentrations (0, 0.5, 1 and 2 wt%). The influence of draw solution concentration, cross-flow velocity and membrane cell orientation on the performance of pristine PBI and PBI/SNP membranes was examined. Results showed that the performance of the PBI/SNP membranes improved compared to the pristine PBI membrane. Addition of 0.5 wt% of SNPs to PBI membranes (S0.5) reduced the membrane's structural parameter (809.4 μm vs. 1193.2 μm), augmented the tensile strength (31.9 MPa vs. 27.3 MPa), and increased water flux by two folds (16.9 Lm−2 h−1 vs. 7.4 Lm−2 h−1) compared to the pristine PBI membrane (S0). Given the thermal stability of the PBI/SNP membrane along with its improved water permeation performance, the modified membrane offers a promising option for the FO process in hot and arid zones.

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http://hdl.handle.net/10453/142561