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Article: Oil-water receiving membrane with sub-10 nm surfactant layer for long-lasting oil-water separation

TitleOil-water receiving membrane with sub-10 nm surfactant layer for long-lasting oil-water separation
Authors
KeywordsAnomalous wettability
Independent water and oil transmembrane passageway
Oil fouling
“Oil-water-receiving” membrane
Issue Date29-Jun-2023
PublisherElsevier
Citation
Journal of Membrane Science, 2023, v. 684 How to Cite?
Abstract

Oil fouling is an inherent threaten of membrane-based separation of oil-water emulsion, while common physical sieving membrane separation and coalescence demulsification fail to achieve long term applications and combat severe water flux declines. We hereby report an "oil-water-receiving" membrane with anomalous wettability constructed by sub-10 nm Tween 80 assembly on hydrophobic PVDF nanofibers to establish independent water and oil transmembrane passageway. Water can go through the membrane freely along the hydrophilic nanofiber surface. While emulsified oils were diverted beneath the ultra-thin hydrophilic layer and captured by PVDF bulk to form coalesced oil phase and discharged out of the nanofibrous membrane as continuous macroscopic oil phase. The membrane showed stable permeate flux as high as 536 & PLUSMN; 40 L m-2 h-1 bar- 1 after 10 h of continuously filtering oil-in-water emulsions. The conformation assembly of surfactants with hydrophilic and hydrophobic chains provides a new strategy to fabricate anti-fouling membranes for oil/water separation.


Persistent Identifierhttp://hdl.handle.net/10722/331243
ISSN
2023 Impact Factor: 8.4
2023 SCImago Journal Rankings: 1.848
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDing, YJ-
dc.contributor.authorQiu, NX-
dc.contributor.authorWang, JQ-
dc.contributor.authorYang, Z-
dc.contributor.authorLiu, F-
dc.contributor.authorTang, CY-
dc.date.accessioned2023-09-21T06:53:59Z-
dc.date.available2023-09-21T06:53:59Z-
dc.date.issued2023-06-29-
dc.identifier.citationJournal of Membrane Science, 2023, v. 684-
dc.identifier.issn0376-7388-
dc.identifier.urihttp://hdl.handle.net/10722/331243-
dc.description.abstract<p>Oil fouling is an inherent threaten of membrane-based separation of oil-water emulsion, while common physical sieving membrane separation and coalescence demulsification fail to achieve long term applications and combat severe water flux declines. We hereby report an "oil-water-receiving" membrane with anomalous wettability constructed by sub-10 nm Tween 80 assembly on hydrophobic PVDF nanofibers to establish independent water and oil transmembrane passageway. Water can go through the membrane freely along the hydrophilic nanofiber surface. While emulsified oils were diverted beneath the ultra-thin hydrophilic layer and captured by PVDF bulk to form coalesced oil phase and discharged out of the nanofibrous membrane as continuous macroscopic oil phase. The membrane showed stable permeate flux as high as 536 & PLUSMN; 40 L m-2 h-1 bar- 1 after 10 h of continuously filtering oil-in-water emulsions. The conformation assembly of surfactants with hydrophilic and hydrophobic chains provides a new strategy to fabricate anti-fouling membranes for oil/water separation.</p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofJournal of Membrane Science-
dc.subjectAnomalous wettability-
dc.subjectIndependent water and oil transmembrane passageway-
dc.subjectOil fouling-
dc.subject“Oil-water-receiving” membrane-
dc.titleOil-water receiving membrane with sub-10 nm surfactant layer for long-lasting oil-water separation-
dc.typeArticle-
dc.identifier.doi10.1016/j.memsci.2023.121820-
dc.identifier.scopuseid_2-s2.0-85163181737-
dc.identifier.volume684-
dc.identifier.eissn1873-3123-
dc.identifier.isiWOS:001032500600001-
dc.publisher.placeAMSTERDAM-
dc.identifier.issnl0376-7388-

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