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Article: Non-Polyamide Based Nanofiltration Membranes Using Green Metal–Organic Coordination Complexes: Implications for the Removal of Trace Organic Contaminants

TitleNon-Polyamide Based Nanofiltration Membranes Using Green Metal–Organic Coordination Complexes: Implications for the Removal of Trace Organic Contaminants
Authors
KeywordsComposite membranes
Coordination reactions
Endocrine disrupters
Iron compounds
Molar ratio
Issue Date2019
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag
Citation
Environmental Science & Technology, 2019, v. 53 n. 5, p. 2688-2694 How to Cite?
AbstractPolyamide-based thin film composite (TFC) membranes are generally optimized for salt rejection but not for the removal of trace organic contaminants (TrOCs). The insufficient rejection of TrOCs such as endocrine disrupting compounds (EDCs) by polyamide membranes can jeopardize product water safety in wastewater reclamation. In this study, we report a novel nonpolyamide membrane chemistry using green tannic acid–iron (TA–Fe) complexes to remove TrOCs. The nanofiltration membrane formed at a TA–Fe molar ratio of 1:3 (TA–Fe3) had a continuous thin rejection layer of 10–30 nm in thickness, together with a water permeability of 5.1 Lm2–h–1bar–1 and a Na2SO4 rejection of 89.7%. Meanwhile, this membrane presented significantly higher rejection of EDCs (up to 99.7%) than that of polyamide membranes (up to 81.8%). Quartz crystal microbalance results revealed that the sorption amount of a model EDC, benzylparbaen, by TA–Fe3 layer was nearly 2 orders of magnitude less than that by polyamide, leading to reduced transmission and higher rejection. Further analysis of membrane revealed a much greater water/EDC selectivity of the TA–Fe3 membrane compared to the polyamide membranes.
Persistent Identifierhttp://hdl.handle.net/10722/272853
ISSN
2019 Impact Factor: 7.864
2015 SCImago Journal Rankings: 2.664

 

DC FieldValueLanguage
dc.contributor.authorGuo, H-
dc.contributor.authorPeng, L-
dc.contributor.authorYao, Z-
dc.contributor.authorYang, Z-
dc.contributor.authorMa, X-
dc.contributor.authorTang, CY-
dc.date.accessioned2019-08-06T09:17:49Z-
dc.date.available2019-08-06T09:17:49Z-
dc.date.issued2019-
dc.identifier.citationEnvironmental Science & Technology, 2019, v. 53 n. 5, p. 2688-2694-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10722/272853-
dc.description.abstractPolyamide-based thin film composite (TFC) membranes are generally optimized for salt rejection but not for the removal of trace organic contaminants (TrOCs). The insufficient rejection of TrOCs such as endocrine disrupting compounds (EDCs) by polyamide membranes can jeopardize product water safety in wastewater reclamation. In this study, we report a novel nonpolyamide membrane chemistry using green tannic acid–iron (TA–Fe) complexes to remove TrOCs. The nanofiltration membrane formed at a TA–Fe molar ratio of 1:3 (TA–Fe3) had a continuous thin rejection layer of 10–30 nm in thickness, together with a water permeability of 5.1 Lm2–h–1bar–1 and a Na2SO4 rejection of 89.7%. Meanwhile, this membrane presented significantly higher rejection of EDCs (up to 99.7%) than that of polyamide membranes (up to 81.8%). Quartz crystal microbalance results revealed that the sorption amount of a model EDC, benzylparbaen, by TA–Fe3 layer was nearly 2 orders of magnitude less than that by polyamide, leading to reduced transmission and higher rejection. Further analysis of membrane revealed a much greater water/EDC selectivity of the TA–Fe3 membrane compared to the polyamide membranes.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag-
dc.relation.ispartofEnvironmental Science & Technology-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science & Technology, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.est.8b06422-
dc.subjectComposite membranes-
dc.subjectCoordination reactions-
dc.subjectEndocrine disrupters-
dc.subjectIron compounds-
dc.subjectMolar ratio-
dc.titleNon-Polyamide Based Nanofiltration Membranes Using Green Metal–Organic Coordination Complexes: Implications for the Removal of Trace Organic Contaminants-
dc.typeArticle-
dc.identifier.emailGuo, H: guohao7@hku.hk-
dc.identifier.emailYang, Z: zheyang8@hku.hk-
dc.identifier.emailTang, CY: tangc@hku.hk-
dc.identifier.authorityTang, CY=rp01765-
dc.description.naturepostprint-
dc.identifier.doi10.1021/acs.est.8b06422-
dc.identifier.pmid30742424-
dc.identifier.scopuseid_2-s2.0-85062330099-
dc.identifier.hkuros299794-
dc.identifier.volume53-
dc.identifier.issue5-
dc.identifier.spage2688-
dc.identifier.epage2694-
dc.publisher.placeUnited States-

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