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- Publisher Website: 10.1021/acs.est.8b02425
- Scopus: eid_2-s2.0-85050724909
- PMID: 30043615
- WOS: WOS:000442706700037
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Article: Tannic Acid/Fe3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance
Title | Tannic Acid/Fe3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance |
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Authors | |
Issue Date | 2018 |
Publisher | American 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? |
Abstract | Conventional 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. |
Persistent Identifier | http://hdl.handle.net/10722/264574 |
ISSN | 2023 Impact Factor: 10.8 2023 SCImago Journal Rankings: 3.516 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yang, Z | - |
dc.contributor.author | Zhou, Z | - |
dc.contributor.author | Guo, H | - |
dc.contributor.author | Yao, Z | - |
dc.contributor.author | Ma, X | - |
dc.contributor.author | Song, X | - |
dc.contributor.author | Feng, SPT | - |
dc.contributor.author | Tang, C | - |
dc.date.accessioned | 2018-10-22T07:57:13Z | - |
dc.date.available | 2018-10-22T07:57:13Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Environmental Science & Technology, 2018, v. 52 n. 16, p. 9341-9349 | - |
dc.identifier.issn | 0013-936X | - |
dc.identifier.uri | http://hdl.handle.net/10722/264574 | - |
dc.description.abstract | Conventional 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. | - |
dc.language | eng | - |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag | - |
dc.relation.ispartof | Environmental Science & Technology | - |
dc.title | Tannic Acid/Fe3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance | - |
dc.type | Article | - |
dc.identifier.email | Guo, H: guohao7@hku.hk | - |
dc.identifier.email | Yao, Z: yaozk@hku.hk | - |
dc.identifier.email | Feng, SPT: hpfeng@hku.hk | - |
dc.identifier.email | Tang, C: tangc@hku.hk | - |
dc.identifier.authority | Feng, SPT=rp01533 | - |
dc.identifier.authority | Tang, C=rp01765 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1021/acs.est.8b02425 | - |
dc.identifier.pmid | 30043615 | - |
dc.identifier.scopus | eid_2-s2.0-85050724909 | - |
dc.identifier.hkuros | 295694 | - |
dc.identifier.volume | 52 | - |
dc.identifier.issue | 16 | - |
dc.identifier.spage | 9341 | - |
dc.identifier.epage | 9349 | - |
dc.identifier.isi | WOS:000442706700037 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0013-936X | - |