Superhydrophobic, hybrid, electrospun cellulose acetate nanofibrous mats for oil/water separation by tailored surface modification

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buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage19754en_US
dc.citation.issueNumber30en_US
dc.citation.spage19747en_US
dc.citation.volumeNumber8en_US
dc.contributor.authorArslan, O.en_US
dc.contributor.authorAytac Z.en_US
dc.contributor.authorUyar, Tameren_US
dc.date.accessioned2018-04-12T10:51:03Z
dc.date.available2018-04-12T10:51:03Z
dc.date.issued2016en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractElectrospun cellulose acetate nanofibers (CA-NF) have been modified with perfluoro alkoxysilanes (FS/CA-NF) for tailoring their chemical and physical features aiming oil-water separation purposes. Strikingly, hybrid FS/CA-NF showed that perfluoro groups are rigidly positioned on the outer surface of the nanofibers providing superhydrophobic characteristic with a water contact angle of ∼155°. Detailed analysis showed that hydrolysis/condensation reactions led to the modification of the acetylated β(1 → 4) linked d-glucose chains of CA transforming it into a superhydrophobic nanofibrous mat. Analytical data have revealed that CA-NF surfaces can be selectively controlled for fabricating the durable, robust and water resistant hybrid electrospun nanofibrous mat. The -OH groups available on the CA structure allowed the basic sol-gel reactions started by the reactive FS hybrid precursor system which can be monitored by spectroscopic analysis. Since alkoxysilane groups on the perfluoro silane compound are capable of reacting for condensation together with the CA, superhydrophobic nanofibrous mat is obtained via electrospinning. This structural modification led to the facile fabrication of the novel oil/water nanofibrous separator which functions effectively demonstrated by hexane/oil and water separation experiments. Perfluoro groups consequently modified the hydrophilic CA nanofibers into superhydrophobic character and therefore FS/CA-NF could be quite practical for future applications like water/oil separators, as well as self-cleaning or water resistant nanofibrous structures.en_US
dc.identifier.doi10.1021/acsami.6b05429en_US
dc.identifier.eissn1944-8252
dc.identifier.issn1944-8244
dc.identifier.urihttp://hdl.handle.net/11693/36727
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/acsami.6b05429en_US
dc.source.titleACS Applied Materials and Interfacesen_US
dc.subjectCellulose acetateen_US
dc.subjectElectrospinningen_US
dc.subjectNanofibersen_US
dc.subjectOil/water separationen_US
dc.subjectPerfluorosilaneen_US
dc.subjectSol-gelen_US
dc.subjectSuperhydrophobicen_US
dc.subjectCelluloseen_US
dc.subjectElectrospinningen_US
dc.subjectHydrophobicityen_US
dc.subjectSeparationen_US
dc.subjectSeparatorsen_US
dc.subjectSilanesen_US
dc.subjectSilicon compoundsen_US
dc.subjectSol-gel processen_US
dc.subjectSol-gelsen_US
dc.subjectSpectroscopic analysisen_US
dc.subjectSpinning (fibers)en_US
dc.subjectSurface treatmenten_US
dc.subjectAlkoxy silane groupen_US
dc.subjectCellulose acetatesen_US
dc.subjectFuture applicationsen_US
dc.subjectOil/water separationen_US
dc.subjectPerfluorosilaneen_US
dc.subjectStructural modificationsen_US
dc.subjectSuperhydrophobicen_US
dc.subjectWater contact angleen_US
dc.subjectNanofibersen_US
dc.subjectCellulose Acetateen_US
dc.subjectCondensationen_US
dc.subjectHydrolysisen_US
dc.subjectSeparationen_US
dc.titleSuperhydrophobic, hybrid, electrospun cellulose acetate nanofibrous mats for oil/water separation by tailored surface modificationen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)
Nanotechnology Research Center (NANOTAM)