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题名: Crystal Facet Dependence of Water Oxidation on BiVO4 Sheets under Visible Light Irradiation
作者: Wang, Donge1, 2;  Jiang, Hongfu1;  Zong, Xu1;  Xu, Qian1, 2;  Ma, Yi1, 2;  Li, Guoling1;  Li, Can1
关键词: BiVO4 ;  crystal engineering ;  crystal growth oxygen ;  photocatalysis
刊名: CHEMISTRY-A EUROPEAN JOURNAL
发表日期: 2011
DOI: 10.1002/chem.201001636
卷: 17, 期:4, 页:1275-1282
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Monoclinic BiVO4 crystals with preferentially exposed (040) facets were hydrothermally synthesized by using a trace amount of TiCl3 as the directing agent; this function was confirmed by X-ray diffraction patterns (XRD) and high-resolution transmission electron microscopy (HRTEM). The effects of the directing agent TiCl3 and the pH values applied during synthesis have been studied, and the optimized BiVO4 sample with highly exposed (040) facet could be obtained by using 1.2 at.% of TiCl3 as the directing agent at a pH value of 2. Some complementary techniques were also applied to exclude the effects of the structural and physical property changes, such as surface area and hydrophilicity. The photocatalytic activity of oxygen evolution on BiVO4 is found to be proportionally correlated with the exposed surfaces of the (040) facet. It is assumed that the active sites with a BiV4 structure on the exposed (040) facet is assigned to be responsible for the high activity of O-2 evolution.
关键词[WOS]: PHOTOSYNTHETIC MN4CA CLUSTER ;  PHOTOCATALYTIC PROPERTIES ;  HYDROTHERMAL PREPARATION ;  ELECTRON MEDIATOR ;  O-2 ;  DECOMPOSITION ;  PERCENTAGE ;  NANOSHEETS ;  CHEMISTRY ;  DIOXYGEN
语种: 英语
WOS记录号: WOS:000287562300026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142325
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Donge,Jiang, Hongfu,Zong, Xu,et al. Crystal Facet Dependence of Water Oxidation on BiVO4 Sheets under Visible Light Irradiation[J]. CHEMISTRY-A EUROPEAN JOURNAL,2011,17(4):1275-1282.
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