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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Melo, Marcos de Oliveira | - |
dc.contributor.author | Silva, Luciana Almeida | - |
dc.creator | Melo, Marcos de Oliveira | - |
dc.creator | Silva, Luciana Almeida | - |
dc.date.accessioned | 2012-02-25T20:20:55Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 1010-6030 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/5457 | - |
dc.description | texto completo: acesso restrito. p.36– 41. | pt_BR |
dc.description.abstract | Binary (Pt/hexCdS) and ternary (Pt/CdS/TiO2 and Pt/TiO2/hexCdS) hybrid photocatalysts were evaluated in photoinduced reforming of glycerol under visible light irradiation ( > 418 nm). The resulting hybrid materials are photocatalytically efficient with respect to hydrogen gas production. The relative order of reactivity for the synthesized hybrid catalysts was found to be: Pt/hexCdS > Pt/CdS/TiO2 > Pt/TiO2/hexCdS. The systems with CdS/aqueous solution interfacial contact showed higher activity, suggesting that the hydrogen production mechanism can be strongly influenced by hydrolytic surface reactions on CdS. The potential gradient created at the CdS/TiO2 or TiO2/hexCdS interface may also play an important role in the photoelectrochemical mechanism. Therefore, carbonyl compounds such as acrolein and propanone, identified in the liquid phase after 7 h of irradiation, lead us to propose the first steps of a photoelectrochemical mechanism in the photoinduced reforming of glycerol. | pt_BR |
dc.language.iso | en | pt_BR |
dc.source | doi:10.1016/j.jphotochem.2011.10.012 | pt_BR |
dc.subject | Visible light | pt_BR |
dc.subject | Glycerol | pt_BR |
dc.subject | Hydrogen | pt_BR |
dc.subject | Photoinduced reforming | pt_BR |
dc.subject | Photocatalysis | pt_BR |
dc.title | Visible lightinduced hydrogen production from glycerol aqueous solution on hybrid Pt–CdS–TiO2 photocatalysts | pt_BR |
dc.title.alternative | Journal of Photochemistry and Photobiology A: Chemistry | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 226. | pt_BR |
dc.embargo.liftdate | 10000-01-01 | - |
Aparece nas coleções: | Artigo Publicado em Periódico (Química) |
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