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Article: Superhydrophilic and mechanical robust PVDF nanofibrous membrane through facile interfacial Span 80 welding for excellent oil/water separation

TitleSuperhydrophilic and mechanical robust PVDF nanofibrous membrane through facile interfacial Span 80 welding for excellent oil/water separation
Authors
KeywordsSuperhydrophilic
PVDF nanofibrous membrane
Nanofiber welding
Span 80
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apsusc
Citation
Applied Surface Science, 2019, v. 485, p. 179-187 How to Cite?
AbstractWe report a novel and facile welding strategy using Span 80 to simultaneously enhance the mechanical robustness and superhydrophilicity of an electrospun poly(vinylidene fluoride) (PVDF) nanofibrous membrane. By taking advantage of its amphiphilic property, Span 80 micelle is able to attach PVDF nanofibers due to the strong affinity between the hydrophobic segments of Span 80 and PVDF. The as-prepared PVDF nanofibrous membrane exhibited simultaneously improved stress (from 1.7 ± 0.3 MPa to 8.8 ± 0.6 MPa). Meanwhile, supherhydrophilic property was endowed through the self-assembly of Span 80 on the hierarchical surface of PVDF membrane. Water contact angle (WCA) and under-water oil contact angle (UOCA) of the modified membrane was nearly 0 and 154.9 ± 2o, respectively. This membrane had a water permeability of 18,482.7 ± 287.3 Lm−2h−1bar−1 for 1, 2-dichloroethane-in-water emulsion with a separation efficiency of 96.3%. The welded PVDF nanofibrous membrane exhibited extraordinary robustness, resisting to long-term washing of water and oil-in-water emulsion.
Persistent Identifierhttp://hdl.handle.net/10722/272852
ISSN
2020 Impact Factor: 6.707
2015 SCImago Journal Rankings: 0.930
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDing, Y-
dc.contributor.authorWu, J-
dc.contributor.authorWang, J-
dc.contributor.authorLin, H-
dc.contributor.authorWang, J-
dc.contributor.authorLiu, G-
dc.contributor.authorPei, X-
dc.contributor.authorLiu, F-
dc.contributor.authorTang, CY-
dc.date.accessioned2019-08-06T09:17:47Z-
dc.date.available2019-08-06T09:17:47Z-
dc.date.issued2019-
dc.identifier.citationApplied Surface Science, 2019, v. 485, p. 179-187-
dc.identifier.issn0169-4332-
dc.identifier.urihttp://hdl.handle.net/10722/272852-
dc.description.abstractWe report a novel and facile welding strategy using Span 80 to simultaneously enhance the mechanical robustness and superhydrophilicity of an electrospun poly(vinylidene fluoride) (PVDF) nanofibrous membrane. By taking advantage of its amphiphilic property, Span 80 micelle is able to attach PVDF nanofibers due to the strong affinity between the hydrophobic segments of Span 80 and PVDF. The as-prepared PVDF nanofibrous membrane exhibited simultaneously improved stress (from 1.7 ± 0.3 MPa to 8.8 ± 0.6 MPa). Meanwhile, supherhydrophilic property was endowed through the self-assembly of Span 80 on the hierarchical surface of PVDF membrane. Water contact angle (WCA) and under-water oil contact angle (UOCA) of the modified membrane was nearly 0 and 154.9 ± 2o, respectively. This membrane had a water permeability of 18,482.7 ± 287.3 Lm−2h−1bar−1 for 1, 2-dichloroethane-in-water emulsion with a separation efficiency of 96.3%. The welded PVDF nanofibrous membrane exhibited extraordinary robustness, resisting to long-term washing of water and oil-in-water emulsion.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apsusc-
dc.relation.ispartofApplied Surface Science-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectSuperhydrophilic-
dc.subjectPVDF nanofibrous membrane-
dc.subjectNanofiber welding-
dc.subjectSpan 80-
dc.titleSuperhydrophilic and mechanical robust PVDF nanofibrous membrane through facile interfacial Span 80 welding for excellent oil/water separation-
dc.typeArticle-
dc.identifier.emailTang, CY: tangc@hku.hk-
dc.identifier.authorityTang, CY=rp01765-
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.apsusc.2019.04.214-
dc.identifier.scopuseid_2-s2.0-85065495431-
dc.identifier.hkuros299792-
dc.identifier.volume485-
dc.identifier.spage179-
dc.identifier.epage187-
dc.identifier.isiWOS:000472183900022-
dc.publisher.placeNetherlands-
dc.identifier.issnl0169-4332-

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