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Article: Janus Membrane with Unparalleled Forward Osmosis Performance
Title | Janus Membrane with Unparalleled Forward Osmosis Performance |
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Authors | |
Keywords | Composite membranes Fluorine compounds Hydrophobicity Nanocomposite films Nanofibers |
Issue Date | 2019 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/toc/estlcu/current |
Citation | Environmental Science & Technology Letters, 2019, v. 6 n. 2, p. 79-85 How to Cite? |
Abstract | We report the use of highly porous Janus membranes with unparalleled forward osmosis (FO) performance in terms of water flux and reverse salt flux. A porous Janus FO membrane, composed of a hydrophilic cellulose acetate layer and a hydrophobic polyvinylidene fluoride (PVDF) nanofiber layer, was fabricated by electrospinning. The resultant membrane exhibited outstanding FO performance, with a high water flux of 274.2 L m–2 h–1 and a low reverse salt flux of 1.65 g m–2 h–1 using 1 M NaCl draw solution. Different from the state-of-the-art thin film composite (TFC) membranes, the prepared Janus membrane demonstrates unparalleled FO performance via a nanofluidic diode model, whose high selectivity is determined by the air gap within the hydrophobic nanofiber layer that can effectively prevent the reverse salt diffusion. Wetting of the hydrophobic layer is the crucial issue in Janus FO membranes, which deserves further attention to extend the osmosis longevity. |
Persistent Identifier | http://hdl.handle.net/10722/272864 |
ISSN | 2023 Impact Factor: 8.9 2023 SCImago Journal Rankings: 3.086 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Zhou, S | - |
dc.contributor.author | Liu, F | - |
dc.contributor.author | Wang, J | - |
dc.contributor.author | Lin, H | - |
dc.contributor.author | Han, Q | - |
dc.contributor.author | Zhao, S | - |
dc.contributor.author | Tang, CY | - |
dc.date.accessioned | 2019-08-06T09:18:00Z | - |
dc.date.available | 2019-08-06T09:18:00Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Environmental Science & Technology Letters, 2019, v. 6 n. 2, p. 79-85 | - |
dc.identifier.issn | 2328-8930 | - |
dc.identifier.uri | http://hdl.handle.net/10722/272864 | - |
dc.description.abstract | We report the use of highly porous Janus membranes with unparalleled forward osmosis (FO) performance in terms of water flux and reverse salt flux. A porous Janus FO membrane, composed of a hydrophilic cellulose acetate layer and a hydrophobic polyvinylidene fluoride (PVDF) nanofiber layer, was fabricated by electrospinning. The resultant membrane exhibited outstanding FO performance, with a high water flux of 274.2 L m–2 h–1 and a low reverse salt flux of 1.65 g m–2 h–1 using 1 M NaCl draw solution. Different from the state-of-the-art thin film composite (TFC) membranes, the prepared Janus membrane demonstrates unparalleled FO performance via a nanofluidic diode model, whose high selectivity is determined by the air gap within the hydrophobic nanofiber layer that can effectively prevent the reverse salt diffusion. Wetting of the hydrophobic layer is the crucial issue in Janus FO membranes, which deserves further attention to extend the osmosis longevity. | - |
dc.language | eng | - |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/toc/estlcu/current | - |
dc.relation.ispartof | Environmental Science & Technology Letters | - |
dc.rights | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science & Technology Letters, 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.estlett.8b00630 | - |
dc.subject | Composite membranes | - |
dc.subject | Fluorine compounds | - |
dc.subject | Hydrophobicity | - |
dc.subject | Nanocomposite films | - |
dc.subject | Nanofibers | - |
dc.title | Janus Membrane with Unparalleled Forward Osmosis Performance | - |
dc.type | Article | - |
dc.identifier.email | Zhou, S: zhoushenghua@nimte.ac.cn | - |
dc.identifier.email | Tang, CY: tangc@hku.hk | - |
dc.identifier.authority | Tang, CY=rp01765 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1021/acs.estlett.8b00630 | - |
dc.identifier.scopus | eid_2-s2.0-85060052498 | - |
dc.identifier.hkuros | 299807 | - |
dc.identifier.volume | 6 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | 79 | - |
dc.identifier.epage | 85 | - |
dc.identifier.isi | WOS:000458937300005 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2328-8930 | - |