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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 850 | - |
dc.citation.startPage | 845 | - |
dc.citation.title | CATALYSIS TODAY | - |
dc.citation.volume | 93-5 | - |
dc.contributor.author | Hwang, Dong Won | - |
dc.contributor.author | Kim, Hyun Gyu | - |
dc.contributor.author | Jang, Jum Suk | - |
dc.contributor.author | Bae, Sang Won | - |
dc.contributor.author | Ji, Sang Min | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2023-12-22T10:43:05Z | - |
dc.date.available | 2023-12-22T10:43:05Z | - |
dc.date.created | 2015-07-24 | - |
dc.date.issued | 2004-09 | - |
dc.description.abstract | In search for efficient photocatalysts for water splitting under visible light, the effect of cation substitution on a layered perovskite, La2Ti2O7 has been studied Among various types of dopants, only Cr and Fe showed intense absorption in the visible light region (lambda > 420 nm), over which H-2 was produced photocatalytically from water-methanol solution. XPS measurements indicated that the oxidation state of doped Cr and Fe was +3. The band gap energies of Cr and Fe-doped La2Ti2O7 were 2.2 and 2.6 eV, respectively, and the H-2 evolution rate was a little higher for the Cr-doped catalyst than that for the Fe-doped one. The theoretical calculation of electronic band structure revealed that the contribution of these dopants on the overall band structure of La2Ti2O7 was negligible, but that they formed a partially filled 3d band in the band gap of La2Ti2O7, from which photoelectrons are excited to the conduction band upon visible light absorption. (C) 2004 Elsevier B.V. All rights reserved | - |
dc.identifier.bibliographicCitation | CATALYSIS TODAY, v.93-5, pp.845 - 850 | - |
dc.identifier.doi | 10.1016/j.cattod.2004.06.084 | - |
dc.identifier.issn | 0920-5861 | - |
dc.identifier.scopusid | 2-s2.0-4344671740 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12556 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0920586104003189# | - |
dc.identifier.wosid | 000223973200121 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title.alternative | Photocatalytic decomposition of water-methanol solution over metal-doped layered perovskites under visible light irradiation | - |
dc.title | Photocatalytic decomposition of water-methanol solution over metal-doped layered perovskites under visible light irradiation | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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