DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gong, JY | - |
dc.contributor.author | Lee, CS | - |
dc.contributor.author | Chang, YY | - |
dc.contributor.author | Chang, YS | - |
dc.date.accessioned | 2016-04-01T07:56:09Z | - |
dc.date.available | 2016-04-01T07:56:09Z | - |
dc.date.created | 2015-06-18 | - |
dc.date.issued | 2015-04-09 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.other | 2015-OAK-0000032933 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/27035 | - |
dc.description.abstract | A novel self-assembled bimetallic zero-valent bismuth/iron (Bi/Fe-0) composite was synthesized, characterized, and used successfully to remove hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) from wastewater. To assess the oxidative and reductive reactivities of Bi/Fe-0 nanoparticles (NPs), RDX degradation experiments were conducted in either ambient or anaerobic conditions, respectively. The best RDX degradation was achieved using 4%-Bi/Fe-0 (atomic ratio) NPs. In ambient conditions, concentrations of Fe2+ ions and H2O2 were lower in the Bi/Fe-0 solution than in the Fe-0 solution; this difference indicates that most Fe2+ ions and H2O2 reacted to produce hydroxyl radicals ((OH)-O-center dot) and superoxide radical anions (O-2(center dot-)), thereby resulting in the remarkable degradation of RDX. In anaerobic conditions, the presence of Bi increased the electron generation rate from the surfaces of the Bi/Fe-0 NPs. This increase was responsible for the excellent reductive degradation of RDX. Based on Density Functional Theory (DFT) calculations, the adsorption of water was endothermic on Fe-0 NPs and exothermic on Bi/Fe-0 NPs. Therefore, only the dissociation reactions of H2O in the Bi/Fe-0 system were spontaneous, and these reactions resulted in the prominent reactivity of the Bi/Fe-0 NPs. (C) 2014 Elsevier B.V. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.title | Novel self-assembled bimetallic structure of Bi/Fe-0: The oxidative and reductive degradation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) | - |
dc.type | Article | - |
dc.contributor.college | 환경공학부 | - |
dc.identifier.doi | 10.1016/J.JHAZMAT.2014.10.063 | - |
dc.author.google | Gong, JY | - |
dc.author.google | Lee, CS | - |
dc.author.google | Chang, YY | - |
dc.author.google | Chang, YS | - |
dc.relation.volume | 286 | - |
dc.relation.startpage | 107 | - |
dc.relation.lastpage | 117 | - |
dc.contributor.id | 10086108 | - |
dc.relation.journal | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.286, pp.107 - 117 | - |
dc.identifier.wosid | 000351963100013 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 117 | - |
dc.citation.startPage | 107 | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 286 | - |
dc.contributor.affiliatedAuthor | Chang, YS | - |
dc.identifier.scopusid | 2-s2.0-84920150186 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 10 | - |
dc.description.scptc | 6 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ZERO-VALENT IRON | - |
dc.subject.keywordPlus | DIBENZO-P-DIOXINS | - |
dc.subject.keywordPlus | FENTON OXIDATION | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | WATER-TREATMENT | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | DECHLORINATION | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordAuthor | Zero-valent iron | - |
dc.subject.keywordAuthor | Bismuth | - |
dc.subject.keywordAuthor | Bimetallic composite | - |
dc.subject.keywordAuthor | RDX | - |
dc.subject.keywordAuthor | DFT calculation | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
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