DC Field | Value | Language |
---|---|---|
dc.contributor.author | Islam, M. Jahurul | ko |
dc.contributor.author | Reddy, D. Amaranatha | ko |
dc.contributor.author | Choi, Jiha | ko |
dc.contributor.author | Kim, Tae Kyu | ko |
dc.date.accessioned | 2024-02-29T02:00:21Z | - |
dc.date.available | 2024-02-29T02:00:21Z | - |
dc.date.created | 2024-02-28 | - |
dc.date.created | 2024-02-28 | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | RSC ADVANCES, v.6, no.23, pp.19341 - 19350 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | http://hdl.handle.net/10203/318319 | - |
dc.description.abstract | Surface-oxygen-vacancy-promoted Z-scheme CeO2-Agl heterostructured photocatalysts were successfully fabricated via a hydrothermal route combined with a precipitation process. Surface oxygen vacancies were formed on the synthesized CeO2-Agl photocatalyst, as determined by X-ray photoelectron spectroscopy. These oxygen vacancies could extend the lifetime of the charge carriers and enhance the photocatalytic activity of these catalysts for rhodamine B (RhB) dye degradation. Among the as-synthesized photocatalysts, the 20 wt% CeO2-Agl (CA-2) nanocomposite demonstrated the highest photocatalytic activity towards the degradation of RhB with 3.28- and 29.8-fold higher activity than pure Agl and CeO2 nanostructures, respectively. In addition, to ensure the visible light photocatalytic activity of the CeO2-Agl nanocomposite, decomposition studies were performed using a colorless substrate such as phenol. The mechanism for the enhanced photocatalytic performance of the CeO2-Agl photocatalyst is proposed to be based on efficient separation of photogenerated electron-hole pairs through a Z-scheme system, in which oxygen vacancy states promote charge separation. Experiments using scavengers of reactive species combined with photoluminescence analysis provide significant evidence for the oxygen-vacancy-mediated Z-scheme mechanism of the photocatalyst. Moreover, the as-prepared oxygen-deficient CeO2-Agl photocatalysts exhibited excellent cycling stability. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Surface oxygen vacancy assisted electron transfer and shuttling for enhanced photocatalytic activity of a Z-scheme CeO2-Agl nanocomposite | - |
dc.type | Article | - |
dc.identifier.wosid | 000370710500069 | - |
dc.identifier.scopusid | 2-s2.0-84958982595 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 23 | - |
dc.citation.beginningpage | 19341 | - |
dc.citation.endingpage | 19350 | - |
dc.citation.publicationname | RSC ADVANCES | - |
dc.identifier.doi | 10.1039/c5ra27533d | - |
dc.contributor.localauthor | Kim, Tae Kyu | - |
dc.contributor.nonIdAuthor | Islam, M. Jahurul | - |
dc.contributor.nonIdAuthor | Reddy, D. Amaranatha | - |
dc.contributor.nonIdAuthor | Choi, Jiha | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | VISIBLE-LIGHT | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE PROPERTIES | - |
dc.subject.keywordPlus | CONTROLLABLE SYNTHESIS | - |
dc.subject.keywordPlus | MAGNETIC-PROPERTIES | - |
dc.subject.keywordPlus | ORGANIC POLLUTANTS | - |
dc.subject.keywordPlus | METHYL-ORANGE | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | WATER | - |
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