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dc.contributor.authorDu, Jiangkun-
dc.contributor.authorBao, Jianguo-
dc.contributor.authorFu, Xiaoyan-
dc.contributor.authorLu, Chenghang-
dc.contributor.authorKim, Sang Hoon-
dc.date.accessioned2024-01-20T04:04:18Z-
dc.date.available2024-01-20T04:04:18Z-
dc.date.created2021-09-05-
dc.date.issued2016-05-05-
dc.identifier.issn0926-3373-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/124074-
dc.description.abstractA mesoporous sulfur-modified iron oxide (MS-Fe) was prepared as a heterogeneous H2O2 catalyst for degradation of BPA. The physico-chemical properties of MS-Fe and bare M-Fe were characterized by BET surface area measurement, SEM, XRD, MIR and XPS. Both M-Fe and MS-Fe composites appeared as cubic microparticles with abundant pores and cracks as well as large surface area. As depicted by XRD, EDX and XPS, M-Fe is mainly consisted of hematite while MS-Fe is a kind of S-doped iron oxide with about 5-6% of sulfur element in terms of atomic ratio. In contrast to the poor catalytic activity of bare M-Fe, the MS Fe composites showed greatly improved efficiencies for H2O2 activation for BPA degradation. The high catalytic activity of this new Fenton-like catalyst can be obtained at different initial pH in range of 3.0-9.0. The time evolution of degradation of BPA followed pseudo-first-order kinetics, and the first-order rate constants showed a linear relationship with parameters of initial pH, catalyst dosage and concentration of BPA. However, the H2O2 dosage showed a dual effect on BPA degradation because excessive H2O2 addition lead to scavenging of hydroxyl radicals ((OH)-O-center dot). The investigation of working mechanisms of MS Fe suggested a synergistic effect of homogeneous and heterogeneous degradation reaction, wherein a strong acidic environment, abundant surface-bonded hydroxyl group and electron-mediating effect of sulfur all contributed to fast activation of H2O2. Overall, this new material overcomes the limitation of narrow working pH range and shows a fast oxidation of BPA with a low H2O2 and catalyst dosage, would have a good potential for environmental application. (C) 2015 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectHYDROGEN-PEROXIDE-
dc.subjectOXIDATIVE-DEGRADATION-
dc.subjectEFFICIENT DEGRADATION-
dc.subjectDOPED ALPHA-FE2O3-
dc.subjectDECOMPOSITION-
dc.subjectMECHANISM-
dc.subjectNANOPARTICLES-
dc.subjectCARBON-
dc.subjectWATER-
dc.subjectIONS-
dc.titleMesoporous sulfur-modified iron oxide as an effective Fenton-like catalyst for degradation of bisphenol A-
dc.typeArticle-
dc.identifier.doi10.1016/j.apcatb.2015.11.015-
dc.description.journalClass1-
dc.identifier.bibliographicCitationAPPLIED CATALYSIS B-ENVIRONMENTAL, v.184, pp.132 - 141-
dc.citation.titleAPPLIED CATALYSIS B-ENVIRONMENTAL-
dc.citation.volume184-
dc.citation.startPage132-
dc.citation.endPage141-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000369205600014-
dc.identifier.scopusid2-s2.0-84948127929-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryEngineering, Environmental-
dc.relation.journalWebOfScienceCategoryEngineering, Chemical-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaEngineering-
dc.type.docTypeArticle-
dc.subject.keywordPlusHYDROGEN-PEROXIDE-
dc.subject.keywordPlusOXIDATIVE-DEGRADATION-
dc.subject.keywordPlusEFFICIENT DEGRADATION-
dc.subject.keywordPlusDOPED ALPHA-FE2O3-
dc.subject.keywordPlusDECOMPOSITION-
dc.subject.keywordPlusMECHANISM-
dc.subject.keywordPlusNANOPARTICLES-
dc.subject.keywordPlusCARBON-
dc.subject.keywordPlusWATER-
dc.subject.keywordPlusIONS-
dc.subject.keywordAuthorMesoporous sulfur-modified iron oxide-
dc.subject.keywordAuthorBisphenol A-
dc.subject.keywordAuthorFenton-like oxidation-
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