Incorporation of negatively charged silver nanoparticles in outer-selective hollow fiber forward osmosis (OSHF-FO) membrane for wastewater dewatering

Choi, PJ; Lim, S; Shon, H; An, AK

Incorporation of negatively charged silver nanoparticles in outer-selective hollow fiber forward osmosis (OSHF-FO) membrane for wastewater dewatering

Choi, PJ Lim, S Shon, H

An, AK

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Desalination, 2022, 522
Issue Date:: 2022-01-15

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Field	Value	Language
dc.contributor.author	Choi, PJ
dc.contributor.author	Lim, S
dc.contributor.author	Shon, H https://orcid.org/0000-0002-3777-7169
dc.contributor.author	An, AK
dc.date.accessioned	2023-03-27T02:22:09Z
dc.date.available	2023-03-27T02:22:09Z
dc.date.issued	2022-01-15
dc.identifier.citation	Desalination, 2022, 522
dc.identifier.issn	0011-9164
dc.identifier.issn	1873-4464
dc.identifier.uri	http://hdl.handle.net/10453/168534
dc.description.abstract	Thin film nanocomposite (TFN) outer selective hollow fiber forward osmosis (OSHF FO) membranes incorporated with negatively charged silver nanoparticles (NPs) were fabricated for wastewater dewatering. The performances of five silver loading concentrations, namely 0% (pristine), 0.0002%, 0.0005%, 0.0010%, and 0.0015%, were compared. Among the four non-zero loading concentrations, 0.0010% showed the best performance. The pristine membrane had a better flux performance than the silver-loaded membranes; however, the silver-loaded membranes lasted longer (over 30 days) and had a higher flux recovery after salt cleaning. The pristine membrane also concentrated the feed solution 4 h faster than the silver-loaded membranes (68 h); however, the performance was not stable, and the water flux continuously decreased. In contrast, the performance of the silver-load membranes was more stable and plateaued between 2 LMH and 3 LMH. Due to the negatively charged silver NPs, the TFN OSHF FO membranes showed a stronger fouling resistance and stable performance, and thus a longer life expectancy. Therefore, the use of TFN OSHF FO membranes with embedded silver NPs can be an alternative strategy for wastewater treatment and dewatering.
dc.language	English
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/ARC IH170100009
dc.relation	University of Technology Sydney
dc.relation.ispartof	Desalination
dc.relation.isbasedon	10.1016/j.desal.2021.115402
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.title	Incorporation of negatively charged silver nanoparticles in outer-selective hollow fiber forward osmosis (OSHF-FO) membrane for wastewater dewatering
dc.type	Journal Article
utslib.citation.volume	522
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
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-27T02:22:08Z
pubs.publication-status	Published
pubs.volume	522

Abstract:

Thin film nanocomposite (TFN) outer selective hollow fiber forward osmosis (OSHF FO) membranes incorporated with negatively charged silver nanoparticles (NPs) were fabricated for wastewater dewatering. The performances of five silver loading concentrations, namely 0% (pristine), 0.0002%, 0.0005%, 0.0010%, and 0.0015%, were compared. Among the four non-zero loading concentrations, 0.0010% showed the best performance. The pristine membrane had a better flux performance than the silver-loaded membranes; however, the silver-loaded membranes lasted longer (over 30 days) and had a higher flux recovery after salt cleaning. The pristine membrane also concentrated the feed solution 4 h faster than the silver-loaded membranes (68 h); however, the performance was not stable, and the water flux continuously decreased. In contrast, the performance of the silver-load membranes was more stable and plateaued between 2 LMH and 3 LMH. Due to the negatively charged silver NPs, the TFN OSHF FO membranes showed a stronger fouling resistance and stable performance, and thus a longer life expectancy. Therefore, the use of TFN OSHF FO membranes with embedded silver NPs can be an alternative strategy for wastewater treatment and dewatering.

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http://hdl.handle.net/10453/168534