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Article: Tannic Acid/Fe 3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance

TitleTannic Acid/Fe 3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance
Authors
Issue Date2018
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag
Citation
Environmental Science & Technology, 2018, v. 52 n. 16, p. 9341-9349 How to Cite?
AbstractConventional thin-film composite (TFC) membranes suffer from the trade-off relationship between permeability and selectivity, known as the 'upper bound'. In this work, we report a high performance thin-film composite membrane prepared on a tannic acid (TA)-Fe nanoscaffold (TFCn) to overcome such upper bound. Specifically, a TA-Fe nanoscaffold was first coated onto a polysulfone substrate, followed by performing an interfacial polymerization reaction between trimesoyl chloride (TMC) and piperazine (PIP). The TA-Fe nanoscaffold enhanced the uptake of amine monomers and provided a platform for their controlled release. The smaller surface pore size of the TA-Fe coated substrate further eliminated the intrusion of polyamide into the substrate pores. The resulting membrane TFCn showed a water permeability of 19.6 ± 0.5 L m2- h-1 bar-1, which was an order of magnitude higher than that of control TFC membrane (2.2 ± 0.3 L m-2 h-1 bar-1). The formation of a more order polyamide rejection layer also significantly enhanced salt rejection (e.g., NaCl, MgCl2, Na2SO4, and MgSO4) and divalent to monovalent ion selectivity (e.g., NaCl/MgSO4). Compared to conventional TFC nanofiltration membranes, the novel TFCn membrane successfully overcame the longstanding permeability and selectivity trade-off. The current work paves a new avenue for fabricating high performance TFC membranes. © Copyright 2018 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/264574
ISSN
2017 Impact Factor: 6.653
2015 SCImago Journal Rankings: 2.664
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYang, Z-
dc.contributor.authorZhou, Z-
dc.contributor.authorGuo, H-
dc.contributor.authorYao, Z-
dc.contributor.authorMa, X-
dc.contributor.authorSong, X-
dc.contributor.authorFeng, SPT-
dc.contributor.authorTang, C-
dc.date.accessioned2018-10-22T07:57:13Z-
dc.date.available2018-10-22T07:57:13Z-
dc.date.issued2018-
dc.identifier.citationEnvironmental Science & Technology, 2018, v. 52 n. 16, p. 9341-9349-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10722/264574-
dc.description.abstractConventional thin-film composite (TFC) membranes suffer from the trade-off relationship between permeability and selectivity, known as the 'upper bound'. In this work, we report a high performance thin-film composite membrane prepared on a tannic acid (TA)-Fe nanoscaffold (TFCn) to overcome such upper bound. Specifically, a TA-Fe nanoscaffold was first coated onto a polysulfone substrate, followed by performing an interfacial polymerization reaction between trimesoyl chloride (TMC) and piperazine (PIP). The TA-Fe nanoscaffold enhanced the uptake of amine monomers and provided a platform for their controlled release. The smaller surface pore size of the TA-Fe coated substrate further eliminated the intrusion of polyamide into the substrate pores. The resulting membrane TFCn showed a water permeability of 19.6 ± 0.5 L m2- h-1 bar-1, which was an order of magnitude higher than that of control TFC membrane (2.2 ± 0.3 L m-2 h-1 bar-1). The formation of a more order polyamide rejection layer also significantly enhanced salt rejection (e.g., NaCl, MgCl2, Na2SO4, and MgSO4) and divalent to monovalent ion selectivity (e.g., NaCl/MgSO4). Compared to conventional TFC nanofiltration membranes, the novel TFCn membrane successfully overcame the longstanding permeability and selectivity trade-off. The current work paves a new avenue for fabricating high performance TFC membranes. © Copyright 2018 American Chemical Society.-
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 [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.titleTannic Acid/Fe 3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance-
dc.typeArticle-
dc.identifier.emailGuo, H: guohao7@hku.hk-
dc.identifier.emailYao, Z: yaozk@hku.hk-
dc.identifier.emailFeng, SPT: hpfeng@hku.hk-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityFeng, SPT=rp01533-
dc.identifier.authorityTang, C=rp01765-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.est.8b02425-
dc.identifier.scopuseid_2-s2.0-85050724909-
dc.identifier.hkuros295694-
dc.identifier.volume52-
dc.identifier.issue16-
dc.identifier.spage9341-
dc.identifier.epage9349-
dc.identifier.isiWOS:000442706700037-
dc.publisher.placeUnited States-

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