Open Access System for Information Sharing

Login Library

 

Article
Cited 20 time in webofscience Cited 22 time in scopus
Metadata Downloads
Full metadata record
Files in This Item:
DC FieldValueLanguage
dc.contributor.authorZhang, G-
dc.contributor.authorMonllor-Satoca, D-
dc.contributor.authorChoi, WY-
dc.date.accessioned2015-06-25T01:35:29Z-
dc.date.available2015-06-25T01:35:29Z-
dc.date.created2013-06-17-
dc.date.issued2013-03-
dc.identifier.issn2044-4753-
dc.identifier.other2015-OAK-0000027663en_US
dc.identifier.urihttps://oasis.postech.ac.kr/handle/2014.oak/9866-
dc.description.abstractCdS-based solid solution (AgIn) xCd(2(1-x))S(2) (x = 0, 0.02, 0.05, 0.1, 0.2, 1.0) was prepared through hydrothermal reaction. The physicochemical and optical properties of the as-prepared solid solution samples were characterized by X-ray diffraction (XRD), diffuse reflectance UV-visible absorption spectroscopy (DRS) and N2 adsorption-desorption isotherms. Through controlling the composition of CdS solid solution, its band-gap energy (E-g) can be easily tuned from ca. 2.4 to 1.8 eV. The band edge energy levels of all samples were determined through the measurement of the open circuit potential (OCP) and onset potential of photocurrent (E-onset) for their respective electrodes. The decrease in Eg of the solid solutions is attributed to the downward and upward shift of conduction and valence band potentials, respectively. It was found that In 5s5p and Cd 5s5p states mainly contribute to the bottom of conduction band, and Ag 4d and S 3p states mainly contribute to the top of valence band as confirmed by theoretical density of states (DOS) calculation. To test the photocatalytic activity of the prepared solid solution materials, the evolution of H-2 and the reduction of polyoxometalate (POM: PMo12O403-) under visible light irradiation were used as probe reactions. The photocatalysis test results were well correlated with the band structures determined from the photoelectrochemical measurements and DOS calculation. The relative positioning between the band-edge levels and the substrate conversion potentials was the most critical and this can be controlled with the solid solution-based photocatalysts.-
dc.description.statementofresponsibilityopenen_US
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.relation.isPartOfCATALYSIS SCIENCE & TECHNOLOGY-
dc.rightsBY_NC_NDen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/kren_US
dc.titleBand Energy Levels and Compositions of CdS-based Solid Solution and Their Relation with Photocatalytic Activities-
dc.typeArticle-
dc.contributor.college환경공학부en_US
dc.identifier.doi10.1039/C3CY00066D-
dc.author.googleZhang, Gen_US
dc.author.googleMonllor-Satoca, Den_US
dc.author.googleChoi, WYen_US
dc.relation.volume3en_US
dc.relation.issue7en_US
dc.relation.startpage1790en_US
dc.relation.lastpage1797en_US
dc.contributor.id10105056en_US
dc.relation.journalCATALYSIS SCIENCE & TECHNOLOGYen_US
dc.relation.indexSCI급, SCOPUS 등재논문en_US
dc.relation.sciSCIen_US
dc.collections.nameJournal Papersen_US
dc.type.rimsART-
dc.identifier.bibliographicCitationCATALYSIS SCIENCE & TECHNOLOGY, v.3, no.7, pp.1790 - 1797-
dc.identifier.wosid000320268900019-
dc.date.tcdate2019-01-01-
dc.citation.endPage1797-
dc.citation.number7-
dc.citation.startPage1790-
dc.citation.titleCATALYSIS SCIENCE & TECHNOLOGY-
dc.citation.volume3-
dc.contributor.affiliatedAuthorChoi, WY-
dc.identifier.scopusid2-s2.0-84880871744-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.wostc9-
dc.description.scptc9*
dc.date.scptcdate2018-10-274*
dc.type.docTypeArticle-
dc.subject.keywordPlusVISIBLE-LIGHT-DRIVEN-
dc.subject.keywordPlusHYDROGEN-PRODUCTION-
dc.subject.keywordPlusELECTRONIC-STRUCTURES-
dc.subject.keywordPlusH-2 EVOLUTION-
dc.subject.keywordPlusAQUEOUS-SOLUTIONS-
dc.subject.keywordPlusCADMIUM-SULFIDE-
dc.subject.keywordPlusWATER-
dc.subject.keywordPlusDIOXIDE-
dc.subject.keywordPlusTIO2-
dc.subject.keywordPlusPLATINUM-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaChemistry-

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

최원용CHOI, WONYONG
Div of Environmental Science & Enginrg
Read more

Views & Downloads

Browse