Smart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: Toward controllable oil/water separation

Handle URI:
http://hdl.handle.net/10754/334633
Title:
Smart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: Toward controllable oil/water separation
Authors:
Zhang, L.; Zhang, Z.; Wang, Peng ( 0000-0003-0856-0865 )
Abstract:
Advanced materials with surfaces that have controllable oil wettability when submerged in aqueous media have great potential for various underwater applications. Here we have developed smart surfaces on commonly used materials, including non-woven textiles and polyurethane sponges, which are able to switch between superoleophilicity and superoleophobicity in aqueous media. The smart surfaces are obtained by grafting a block copolymer, comprising blocks of pH-responsive poly(2-vinylpyridine) and oleophilic/hydrophobic polydimethylsiloxane (i.e., P2VP-b-PDMS) on these materials. The P2VP block can alter its wettability and its conformation via protonation and deprotonation in response to the pH of the aqueous media, which provides controllable and switchable access of oil by the PDMS block, resulting in the switchable surface oil wettability in the aqueous media. On the other hand, the high flexibility of the PDMS block facilitates the reversible switching of the surface oil wettability. As a proof of concept, we also demonstrate that materials functionalized with our smart surfaces can be used for highly controllable oil/water separation processes.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
Zhang L, Zhang Z, Wang P (2012) Smart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: toward controllable oil/water separation. NPG Asia Mater 4: e8. doi:10.1038/am.2012.14.
Publisher:
Springer Nature
Journal:
NPG Asia Materials
Issue Date:
Feb-2012
DOI:
10.1038/am.2012.14
Type:
Article
ISSN:
18844049
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, L.en
dc.contributor.authorZhang, Z.en
dc.contributor.authorWang, Pengen
dc.date.accessioned2014-11-11T14:32:53Z-
dc.date.available2014-11-11T14:32:53Z-
dc.date.issued2012-02en
dc.identifier.citationZhang L, Zhang Z, Wang P (2012) Smart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: toward controllable oil/water separation. NPG Asia Mater 4: e8. doi:10.1038/am.2012.14.en
dc.identifier.issn18844049en
dc.identifier.doi10.1038/am.2012.14en
dc.identifier.urihttp://hdl.handle.net/10754/334633en
dc.description.abstractAdvanced materials with surfaces that have controllable oil wettability when submerged in aqueous media have great potential for various underwater applications. Here we have developed smart surfaces on commonly used materials, including non-woven textiles and polyurethane sponges, which are able to switch between superoleophilicity and superoleophobicity in aqueous media. The smart surfaces are obtained by grafting a block copolymer, comprising blocks of pH-responsive poly(2-vinylpyridine) and oleophilic/hydrophobic polydimethylsiloxane (i.e., P2VP-b-PDMS) on these materials. The P2VP block can alter its wettability and its conformation via protonation and deprotonation in response to the pH of the aqueous media, which provides controllable and switchable access of oil by the PDMS block, resulting in the switchable surface oil wettability in the aqueous media. On the other hand, the high flexibility of the PDMS block facilitates the reversible switching of the surface oil wettability. As a proof of concept, we also demonstrate that materials functionalized with our smart surfaces can be used for highly controllable oil/water separation processes.en
dc.language.isoenen
dc.publisherSpringer Natureen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/3.0/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en
dc.subjectblock copolymeren
dc.subjectoil/water separationen
dc.subjectsmart surfacesen
dc.subjectwettabilityen
dc.titleSmart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: Toward controllable oil/water separationen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalNPG Asia Materialsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZhang, Lianbinen
kaust.authorZhang, Zhonghaien
kaust.authorWang, Pengen
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