Tuning Activities of K1.9Na0.1Ta2O6 center dot 2H(2)O Nanocrystals in Photocatalysis by Controlling Exposed Facets

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	Tuning Activities of K1.9Na0.1Ta2O6 center dot 2H(2)O Nanocrystals in Photocatalysis by Controlling Exposed Facets
	Li, Yingxuan; Chen, Shuai; He, Hongquan; Zhang, Ying; Wang, Chuanyi
刊名	ACS APPLIED MATERIALS & INTERFACES
	2013
卷号	5 期号:20 页码:10260-10265
关键词	K1.9Na0.1Ta2O6 center dot 2H(2)O nanooctahedra nanosheets photocatalytic H-2 evolution exposed facets surface structure
ISSN号	19448244
英文摘要	Morphology-controlled synthesis of tantalates is a major challenge in the field of material science. Herein, an innovative strategy has been developed for controllably synthesizing K1.9Na0.1Ta2O 6·2H2O (KNTO) nanocrystals shaped as octahedra and nanosheets without using any capping agents. The obtained nanocrystals show high activity in photocatalytic H2 evolution from CH3OH/H 2O solution, and their performance closely depends on the exposed facets, in which the {111}-facet-bounded nanooctahedra exhibit more than 3 times higher activity than the nanosheets dominated with {101} facets. The influence of surface atomic structure and electronic band structure on the photocatalytic properties of the KNTO nanocrystals is systematically studied. This is the first report for the facet controllable synthesis of tantalate materials with highly regular shapes. The present approach is anticipated as a general strategy for controllable synthesis of tantalate materials and also provides feasibility for rational design and activity optimization of shape-controlled photocatalysts for H2 production.
收录类别	SCI
WOS记录号	WOS:000326212900054
公开日期	2014-11-11
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/3863]
专题	新疆理化技术研究所_环境科学与技术研究室
作者单位	Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Yingxuan,Chen, Shuai,He, Hongquan,et al. Tuning Activities of K1.9Na0.1Ta2O6 center dot 2H(2)O Nanocrystals in Photocatalysis by Controlling Exposed Facets[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(20):10260-10265.
APA	Li, Yingxuan,Chen, Shuai,He, Hongquan,Zhang, Ying,&Wang, Chuanyi.(2013).Tuning Activities of K1.9Na0.1Ta2O6 center dot 2H(2)O Nanocrystals in Photocatalysis by Controlling Exposed Facets.ACS APPLIED MATERIALS & INTERFACES,5(20),10260-10265.
MLA	Li, Yingxuan,et al."Tuning Activities of K1.9Na0.1Ta2O6 center dot 2H(2)O Nanocrystals in Photocatalysis by Controlling Exposed Facets".ACS APPLIED MATERIALS & INTERFACES 5.20(2013):10260-10265.