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dc.citation.endPage 2925 -
dc.citation.number 5 -
dc.citation.startPage 2918 -
dc.citation.title ENVIRONMENTAL SCIENCE & TECHNOLOGY -
dc.citation.volume 53 -
dc.contributor.author Kim, Hyejin -
dc.contributor.author Lim, Jonghun -
dc.contributor.author Lee, Seonggyu -
dc.contributor.author Kim, Hak-Hyeon -
dc.contributor.author Lee, Changha -
dc.contributor.author Lee, Jinwoo -
dc.contributor.author Choi, Wonyong -
dc.date.accessioned 2023-12-21T19:20:51Z -
dc.date.available 2023-12-21T19:20:51Z -
dc.date.created 2019-03-22 -
dc.date.issued 2019-03 -
dc.description.abstract Copper phosphide (Cu x P) was synthesized and tested for its reactivity for generating H 2 O 2 through spontaneous reduction of dioxygen under ambient aqueous condition. The in situ generated H 2 O 2 was subsequently decomposed to generate OH radicals, which enabled the degradation of organic compounds in water. The oxygen reduction reaction proceeded along with the concurrent oxidation of phosphide to phosphate, then copper ions and phosphate ions were dissolved out during the reaction. The reactivity of Cu x P was gradually reduced during 10 cycles with consuming 8.7 mg of Cu x P for the successive removal of 17 μmol 4-chlorophenol. CoP which was compared as a control sample under the same experimental condition also produced H 2 O 2 through activating dioxygen but did not degrade organic compounds at all. The electrochemical analysis for the electron transfers on Cu x P and CoP showed that the number of electrons transferred to O 2 is 3 and 2, respectively, which explains why OH radical is generated on Cu x P, not on CoP. The Cu + species generated on the Cu x P surface can participate in Fenton-like reaction with in situ generated H 2 O 2 . Cu x P is proposed as a solid reagent that can activate dioxygen to generate reactive oxygen species in ambient aqueous condition, which is more facile to handle and store than liquid/gas reagents (e.g., H 2 O 2 , Cl 2 , O 3 ). -
dc.identifier.bibliographicCitation ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.53, no.5, pp.2918 - 2925 -
dc.identifier.doi 10.1021/acs.est.8b06353 -
dc.identifier.issn 0013-936X -
dc.identifier.scopusid 2-s2.0-85062387581 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/26402 -
dc.identifier.url https://pubs.acs.org/doi/10.1021/acs.est.8b06353 -
dc.identifier.wosid 000460709100068 -
dc.language 영어 -
dc.publisher American Chemical Society -
dc.title Spontaneous Generation of H 2 O 2 and Hydroxyl Radical through O 2 Reduction on Copper Phosphide under Ambient Aqueous Condition -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Engineering, Environmental; Environmental Sciences -
dc.relation.journalResearchArea Engineering; Environmental Sciences & Ecology -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus Degradation of organic compounds -
dc.subject.keywordPlus Electrochemical analysis -
dc.subject.keywordPlus Experimental conditions -
dc.subject.keywordPlus Fenton-like reactions -
dc.subject.keywordPlus Number of electrons -
dc.subject.keywordPlus Oxygen reduction reaction -
dc.subject.keywordPlus Reactive oxygen species -
dc.subject.keywordPlus Spontaneous generation -
dc.subject.keywordPlus Copper compounds -
dc.subject.keywordPlus Coefficient of performance -
dc.subject.keywordPlus Dissolved oxygen -
dc.subject.keywordPlus Electrolytic reduction -
dc.subject.keywordPlus Free radicals -
dc.subject.keywordPlus In situ processing -
dc.subject.keywordPlus Metal ions -
dc.subject.keywordPlus Organic compounds -
dc.subject.keywordPlus Oxidation -

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