Heteroatoms doped metal iron-polyvinylidene fluoride (PVDF) membrane for enhancing oxidation of organic contaminants

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dc.contributor.authorYao, Y.
dc.contributor.authorLian, C.
dc.contributor.authorHu, Y.
dc.contributor.authorZhang, J.
dc.contributor.authorGao, M.
dc.contributor.authorZhang, Y.
dc.contributor.authorWang, S.
dc.date.issued2017
dc.descriptionAvailable online 15 May 2017
dc.description.abstractIron nanoparticles (NPs) embedded in S, N-codoped carbon were prepared by one-step pyrolysis of a homogeneous mixture consisting of Fe, S, N, C precursors, and then immobilized in poly (vinylidene fluoride) membranes as a multifunctional catalytic system (NSC-Fe@PVDF) to effectively activate peroxymonosulfate (PMS) and oxidize organic compounds in water. The NSC-Fe@PVDF membranes effectively decolorized organic pollutants at a wide pH range (2.05-10.85), due to the synergistic effects between the S, N-doped carbon and iron NPs. The efficiency depended on the doping types, amount of metal, PMS dosages, reaction temperatures, solution pHs, and organic substrates. In-situ electron spin resonance spectroscopy and sacrificial-reagent incorporated catalysis indicate radical intermediates such as sulfate and hydroxyl radicals are mainly responsible for this persulfate-driven oxidation of organic compounds. Membrane's porous structure and high internal surface area not only minimize the NPs agglomeration, but also allow the facile transport of catalytic reactants to the active surface of metal catalysts. The results demonstrate the morphological and structural features of catalytic membranes enhance the overall catalytic activity.
dc.description.statementofresponsibilityYunjin Yao, Chao Lian, Yi Hu, Jie Zhang, Mengxue Gao, Yu Zhang, Shaobin Wang
dc.identifier.citationJournal of Hazardous Materials, 2017; 338:265-275
dc.identifier.doi10.1016/j.jhazmat.2017.05.026
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.orcidWang, S. [0000-0002-1751-9162]
dc.identifier.urihttp://hdl.handle.net/2440/114371
dc.language.isoen
dc.publisherElsevier BV
dc.relation.grant2015M570547
dc.relation.grant2016T90585
dc.relation.granthttp://purl.org/au-research/grants/arc/DP150103026
dc.rights© 2017 Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.jhazmat.2017.05.026
dc.subjectPVDF membrane; organic pollutant; catalytic degradation; sulfate radical
dc.titleHeteroatoms doped metal iron-polyvinylidene fluoride (PVDF) membrane for enhancing oxidation of organic contaminants
dc.typeJournal article
pubs.publication-statusPublished

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