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Effective chromium removal from water by polyaniline-coated electrospun adsorbent membrane

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dc.contributor.authorDognani, Guilherme [UNESP]
dc.contributor.authorHadi, Pejman
dc.contributor.authorMa, Hongyang
dc.contributor.authorCabrera, Flavio C. [UNESP]
dc.contributor.authorJob, Aldo E. [UNESP]
dc.contributor.authorAgostini, Deuber L.S. [UNESP]
dc.contributor.authorHsiao, Benjamin S.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionStony Brook University
dc.contributor.institutionBeijing University of Chemical Technology
dc.date.accessioned2019-10-06T15:41:03Z
dc.date.available2019-10-06T15:41:03Z
dc.date.issued2019-09-15
dc.description.abstractPolyaniline (PAni)-coated polyvinylidenefluoride-co-hexafluoropropilene (PVDF-HFP)nanofibrous membranes were fabricated by electrospinning of PVDF-HFP followed by in-situ polymerization of PAni on the nanofiber surface. The resulting membranes with PAni coating were applied for chromium removal, where the efficiency was evaluated as functions of the pH value and adsorption time. Dynamic adsorption tests were also carried out at different flow rates and volumes of chromium in water. It was found that the PAni coating greatly enhanced the chromium removal efficiency with the maximum adsorption capacity being 15.08 mg/g at pH = 4.5. The desorption study further confirmed the recyclability of the PAni coated PVDF-HFP membrane showing an efficiency over 70% even after 5 cycles of usage. The structure and property relationships of these membranes were also characterized by FTIR spectroscopy, capillary flow porometer, water contact angle, scanning electron microscopy and X-ray photoelectron spectroscopy.en
dc.description.affiliationSchool of Technology and Sciences São Paulo State University (UNESP)
dc.description.affiliationDepartment of Chemistry Stony Brook University
dc.description.affiliationNew York State Center for Clean Water Technology Stony Brook University
dc.description.affiliationState Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology
dc.description.affiliationUnespSchool of Technology and Sciences São Paulo State University (UNESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipNational Natural Science Foundation of China
dc.description.sponsorshipIdFAPESP: 2015/21261-2
dc.description.sponsorshipIdFAPESP: 2017/03638-7
dc.description.sponsorshipIdNational Natural Science Foundation of China: 51673011
dc.format.extent341-351
dc.identifierhttp://dx.doi.org/10.1016/j.cej.2019.04.154
dc.identifier.citationChemical Engineering Journal, v. 372, p. 341-351.
dc.identifier.doi10.1016/j.cej.2019.04.154
dc.identifier.issn1385-8947
dc.identifier.scopus2-s2.0-85064681075
dc.identifier.urihttp://hdl.handle.net/11449/187588
dc.language.isoeng
dc.relation.ispartofChemical Engineering Journal
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAdsorbent membrane
dc.subjectAdsorption
dc.subjectChromium removal
dc.subjectElectrospinning
dc.subjectNanofibers
dc.subjectPolyaniline
dc.titleEffective chromium removal from water by polyaniline-coated electrospun adsorbent membraneen
dc.typeArtigo
dspace.entity.typePublication

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