Hollow Anatase TiO2 Single Crystals and Mesocrystals with Dominant {101} Facets for Improved Photocatalysis Activity and Tuned Reaction Preference

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	Hollow Anatase TiO2 Single Crystals and Mesocrystals with Dominant {101} Facets for Improved Photocatalysis Activity and Tuned Reaction Preference
	W. Jiao; L. Z. Wang; G. Liu; G. Q. Lu; H. M. Cheng
	2012
发表期刊	Acs Catalysis
ISSN	2155-5435
卷号	2 期号:9 页码:1854-1859
摘要	Faceting photocatalysts has attracted increasing interest to improve photocatalytic activity by optimizing surface charge carrier separation/transfer. In principle, a high photocatalytic activity is co-contributed by both high surface separation/transfer and low bulk recombination of charge carriers. However, little effort focuses on lowering bulk recombination of charge carriers in faceted photocatalysts. In this work, we report the synthesis of hollow anatase TiO2 single crystals and mesocrystals with dominant (101) facets by a new route with PO43-/F- as morphology controlling agent. It is found that with respect to solid crystals, being hollow crystals and mesocrystals can substantially improve photocatalytic activity (O-2/H-2 evolution from water splitting, CH4 generation from photoreduction of CO2) as a result of the synergistic effects of shortened bulk diffusion length of carriers for the decreased bulk recombination and increased surface area. Furthermore, the photocatalysis reaction preference toward O-2 and H-2 evolution from water splitting can be tuned.
部门归属	[jiao, wei; liu, gang; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [wang, lianzhou; lu, gao qing (max)] univ queensland, arc ctr excellence funct nanomat, brisbane, qld 4072, australia.;liu, g (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china.;gangliu@imr.ac.cn
关键词	Hollow Tio2 Single Crystal Mesocrystal Photocatalysis Exposed 001 Facets Titanium-dioxide Nanosheets Percentage Reduction Powders Surface
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60027
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Jiao,L. Z. Wang,G. Liu,et al. Hollow Anatase TiO2 Single Crystals and Mesocrystals with Dominant {101} Facets for Improved Photocatalysis Activity and Tuned Reaction Preference[J]. Acs Catalysis,2012,2(9):1854-1859.
APA	W. Jiao,L. Z. Wang,G. Liu,G. Q. Lu,&H. M. Cheng.(2012).Hollow Anatase TiO2 Single Crystals and Mesocrystals with Dominant {101} Facets for Improved Photocatalysis Activity and Tuned Reaction Preference.Acs Catalysis,2(9),1854-1859.
MLA	W. Jiao,et al."Hollow Anatase TiO2 Single Crystals and Mesocrystals with Dominant {101} Facets for Improved Photocatalysis Activity and Tuned Reaction Preference".Acs Catalysis 2.9(2012):1854-1859.