An artificial photosynthetic system containing an inorganic semiconductor and a molecular catalyst for photocatalytic water oxidation

doi:10.1016/j.jcat.2016.02.024

	An artificial photosynthetic system containing an inorganic semiconductor and a molecular catalyst for photocatalytic water oxidation
	Ye, Sheng 1,2; Chen, Ruotian 2; Xu, Yuxing 2; Fan, Fengtao 2; Du, Pingwu 1; Zhang, Fuxiang 2; Zong, Xu 2; Chen, Tao 2; Qi, Yu 2; Chen, Ping 2
刊名	JOURNAL OF CATALYSIS
	2016-06-01
卷号	338 页码:168-173
关键词	Artificial Photosynthesis Water Oxidation Surface Photovoltage
ISSN号	0021-9517
DOI	10.1016/j.jcat.2016.02.024
文献子类	Article
英文摘要	Water oxidation has long been considered to be the bottleneck of the water splitting reaction. Most semiconductor-based photocatalysts show low oxidation activity, mainly because of poor charge separation and transfer. Here, we construct an artificial photosynthetic system for photocatalytic water oxidation using BiVO4 as a photosensitizer and cubic Co complex as the oxygen-evolving catalyst. This system exhibits a high turnover frequency (TOF = 2.0 s(-1)) for O-2 evolution in the presence of NalO(3) as an electron acceptor, with an apparent quantum efficiency (AQE) yield of 4.5% at 420 nm, which is ninefold that of bare BiVO4 (0.5%), but the decomposition of the Co complex leads to decreased photocatalytic activity as time goes on. Spectroscopic studies confirmed an efficient interfacial hole transfer process from the semiconductor to the molecular catalyst. These results may shed light on designing artificial photocatalysts with highly efficient molecular catalysts and suitable semiconductor materials for water oxidation. (C) 2016 Elsevier Inc. All rights reserved.
WOS关键词	PHOTOSYSTEM-II ; LIGHT ; HYBRID ; INTERMEDIATE ; NANOCRYSTALS ; COCATALYSTS ; STABILITY ; COMPLEXES ; ANALOG
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000376695500017
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170584]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Li, Can
作者单位	1.Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Ye, Sheng,Chen, Ruotian,Xu, Yuxing,et al. An artificial photosynthetic system containing an inorganic semiconductor and a molecular catalyst for photocatalytic water oxidation[J]. JOURNAL OF CATALYSIS,2016,338:168-173.
APA	Ye, Sheng.,Chen, Ruotian.,Xu, Yuxing.,Fan, Fengtao.,Du, Pingwu.,...&Li, Can.(2016).An artificial photosynthetic system containing an inorganic semiconductor and a molecular catalyst for photocatalytic water oxidation.JOURNAL OF CATALYSIS,338,168-173.
MLA	Ye, Sheng,et al."An artificial photosynthetic system containing an inorganic semiconductor and a molecular catalyst for photocatalytic water oxidation".JOURNAL OF CATALYSIS 338(2016):168-173.