DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, JH | - |
dc.contributor.author | Tratnyek, PG | - |
dc.contributor.author | Chang, YS | - |
dc.date.accessioned | 2016-04-01T01:20:35Z | - |
dc.date.available | 2016-04-01T01:20:35Z | - |
dc.date.created | 2009-02-28 | - |
dc.date.issued | 2008-06-01 | - |
dc.identifier.issn | 0013-936X | - |
dc.identifier.other | 2008-OAK-0000007800 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/22738 | - |
dc.description.abstract | Polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), especially the 2,3,7,8-substituted congeners, are extremely toxic, persistent, and recalcitrant to remediation. Dechlorination of PCDD/Fs by zerovalent iron (ZVI) is thermodynamically feasible, but useful rates of reaction have not been previously reported. Here we show that ZVI (both micro- and nanosized ZVI, without palladization) dechlorinates PCDD congeners with four or more chlorines in aqueous systems, but the reaction is too slow to achieve complete dechlorination within a practical period of time. In contrast, palladized nanosized ZVI (Pd/nFe) rapidly dechlorinates PCDDs, including the mono- to tetra-chlorinated congeners. The rate of 1,2,3,4-tetrachloro dibenzo-p-dioxin (1,2 3,4-TeCDD) degradation using Pd/nFe was about 3 orders of magnitude faster than 1,2,3,4-TeCDD degradation using unpalladized ZVI. The distribution of products obtained from dechlorination of 1,2,3,4-TeCDD suggests that palladization shifts the pathways of contaminant degradation toward a greater role of H atom transfer rather than electron transfer. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ENVIRONMENTAL SCIENCE & TECHNOLOGY | - |
dc.subject | ZERO-VALENT IRON | - |
dc.subject | REDUCTIVE DECHLORINATION | - |
dc.subject | ORGANIC CONTAMINANTS | - |
dc.subject | CHLORINATED ETHENES | - |
dc.subject | RATE CONSTANTS | - |
dc.subject | PARTICLES | - |
dc.subject | HYDRODECHLORINATION | - |
dc.subject | DEHALOGENATION | - |
dc.subject | TRANSFORMATION | - |
dc.subject | KINETICS | - |
dc.title | Rapid dechlorination of polychlorinated dibenzo-p-dioxins by bimetallic and nanosized zerovalent iron | - |
dc.type | Article | - |
dc.contributor.college | 환경공학부 | - |
dc.identifier.doi | 10.1021/ES702560K | - |
dc.author.google | Kim, JH | - |
dc.author.google | Tratnyek, PG | - |
dc.author.google | Chang, YS | - |
dc.relation.volume | 42 | - |
dc.relation.issue | 11 | - |
dc.relation.startpage | 4106 | - |
dc.relation.lastpage | 4112 | - |
dc.contributor.id | 10086108 | - |
dc.relation.journal | ENVIRONMENTAL SCIENCE & TECHNOLOGY | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.42, no.11, pp.4106 - 4112 | - |
dc.identifier.wosid | 000256274300035 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 4112 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 4106 | - |
dc.citation.title | ENVIRONMENTAL SCIENCE & TECHNOLOGY | - |
dc.citation.volume | 42 | - |
dc.contributor.affiliatedAuthor | Chang, YS | - |
dc.identifier.scopusid | 2-s2.0-44449108750 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 99 | - |
dc.description.scptc | 94 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ZERO-VALENT IRON | - |
dc.subject.keywordPlus | REDUCTIVE DECHLORINATION | - |
dc.subject.keywordPlus | ORGANIC CONTAMINANTS | - |
dc.subject.keywordPlus | CHLORINATED ETHENES | - |
dc.subject.keywordPlus | RATE CONSTANTS | - |
dc.subject.keywordPlus | PARTICLES | - |
dc.subject.keywordPlus | HYDRODECHLORINATION | - |
dc.subject.keywordPlus | DEHALOGENATION | - |
dc.subject.keywordPlus | TRANSFORMATION | - |
dc.subject.keywordPlus | KINETICS | - |
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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