Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4

	Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4
	Li, Rengui 1,2; Zhang, Fuxiang 1; Wang, Donge 1; Yang, Jingxiu 1,2; Li, Mingrun 1; Zhu, Jian 1,2; Zhou, Xin 1; Han, Hongxian 1; Li, Can 1
刊名	nature communications
	2013-02-01
卷号	4 页码:2401
通讯作者	李灿
产权排序	待补充
合作状况	英
英文摘要	charge separation is crucial for increasing the activity of semiconductor-based photocatalysts, especially in water splitting reactions. here we show, using monoclinic bismuth vanadate crystal as a model photocatalyst, that efficient charge separation can be achieved on different crystal facets, as evidenced by the reduction reaction with photogenerated electrons and oxidation reaction with photogenerated holes, which take place separately on the {010} and {110} facets under photo-irradiation. based on this finding, the reduction and oxidation cocatalysts are selectively deposited on the {010} and {110} facets respectively, resulting in much higher activity in both photocatalytic and photoelectrocatalytic water oxidation reactions, compared with the photocatalyst with randomly distributed cocatalysts. these results show that the photogenrated electrons and holes can be separated between the different facets of semiconductor crystals. this finding may be useful in semiconductor physics and chemistry to construct highly efficient solar energy conversion systems.
学科主题	物理化学
WOS标题词	science & technology
类目[WOS]	multidisciplinary sciences
研究领域[WOS]	science & technology - other topics
关键词[WOS]	sensitized solar-cells ; tio2 nanotube arrays ; charge separation ; visible-light ; water oxidation ; photoelectrochemical properties ; nanorod heterostructures ; anatase ; dye ; oxide
收录类别	SCI
资助信息	1，1
原文出处	2401
语种	英语
WOS记录号	WOS:000316616400008
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119383]
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
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Rengui,Zhang, Fuxiang,Wang, Donge,et al. Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4[J]. nature communications,2013,4:2401.
APA	Li, Rengui.,Zhang, Fuxiang.,Wang, Donge.,Yang, Jingxiu.,Li, Mingrun.,...&Li, Can.(2013).Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4.nature communications,4,2401.
MLA	Li, Rengui,et al."Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4".nature communications 4(2013):2401.