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学科主题: 物理化学
题名: Combination of Semiconductor and Bio-Mimetic Complex in Photosystem for Photocatalytic H2 Evolution under Visible Light
作者: Wen FY(温福宇) ;  Zong X(宗旭) ;  Li C(李灿)
会议名称: 第十三届亚洲化学会
会议日期: 2009-9-13
出版日期: 2009-09-13
会议地点: China
通讯作者: 李灿
部门归属: 五室
主办者: Chinese Chemical Society
摘要: H2 production from photocatalytic reaction which mimicking nature photosynthesis has recently attracted much attention [1,2]. Here we report a hybrid photocatalytic system which composed of semiconductor and mimetic hydrogenase (CdS/CoIII(dmgH)2pyCl) can effectively enhance the visible light-driven hydrogen producing activity. The rate of H2 evolution catalyzed by this combined catalysts is 30 times faster than that obtained merely using CdS as photocatalyst under the same conditions. More than 42 turnovers (based on CoIII(dmgH)2pyCl) can be achieved during 6 h photacatalysis. From a series of parallel experiment, the reaction mechanism is postulated to involve: 1) the production of photoinduced electron on CdS; 2) the transfer to Co complex to form reduced species CoI(dmgH)2pyCl; 3) combination with H+ and then release of H2. The process of H2 evolution for the hybrid photocatalytic system reported here is very analogic to the one for photosystem I in algae.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/113834
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:
Wen FY,Zong X,Li C. Combination of Semiconductor and Bio-Mimetic Complex in Photosystem for Photocatalytic H2 Evolution under Visible Light[C]. 见:第十三届亚洲化学会. China. 2009-9-13.
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