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学科主题: 物理化学
题名: Roles of the dual-cocatalyst in the Pt-PdS/CdS showing exceptional high quantum efficiency for photocatalytic hydrogen production
作者: Yang JH(杨金辉) ;  Yan HJ(鄢洪建) ;  Ma GJ(马贵军) ;  Wen FY(温福宇) ;  Ma BJ(马保军) ;  Li C(李灿)
会议名称: Sixth Tokyo Conference on Advanced Catalytic Science and Technology & Fifth Asia Pacific Congress on Catalysis
会议日期: 2010-7-18
出版日期: 2010-07-18
会议地点: Japan
通讯作者: 李灿
部门归属: 五室
主办者: Catalysis Society of Japan
摘要: Anatase and rutile TiO2 were investigated with photoluminescence (PL) techniques under weak excitation condition. The visible emission band was assigned to the donor-acceptor recombination. Oxygen vacancies and hydroxyl groups mainly serve as the donor and acceptor sites, respectively. The NIR luminescence is originated from the recombination of trapped electrons with free holes. The carrier dynamics in anatase TiO2 are sensitively affected by heat treatment and the presence of oxygen, while the decay processes stay relatively unchanged for rutile TiO2. The trap states in TiO2 may largely influence the photocatalysis process of TiO2 and may determine the photocatalytic activity.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/114106
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Yang JH,Yan HJ,Ma GJ,et al. Roles of the dual-cocatalyst in the Pt-PdS/CdS showing exceptional high quantum efficiency for photocatalytic hydrogen production[C]. 见:Sixth Tokyo Conference on Advanced Catalytic Science and Technology & Fifth Asia Pacific Congress on Catalysis. Japan. 2010-7-18.
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