TiO2/Cu2O Core/Ultrathin Shell Nanorods as Efficient and Stable Photocatalysts for Water Reduction

IMR OpenIR

	TiO2/Cu2O Core/Ultrathin Shell Nanorods as Efficient and Stable Photocatalysts for Water Reduction
	Liu, Yuanxu; Zhang, Bingsen; Luo, Liangfeng; Chen, Xuanye; Wang, Zhonglei; Wu, Erlong; Su, Dangsheng; Huang, Weixin; huangwx@ustc.edu.cn
	2015
发表期刊	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN	1433-7851
卷号	54 期号:50 页码:15260-15265
摘要	P-type Cu2O has been long considered as an attractive photocatalyst for photocatalytic water reduction, but few successful examples has been reported. Here, we report the synthesis of TiO2 (core)/Cu2O (ultrathin film shell) nanorods by a redox reaction between Cu2+ and in-situ generated Ti3+ when Cu2+-exchanged H-titanate nanotubes are calcined in air. Owing to the strong TiO2-Cu2O interfacial interaction, TiO2 (core)/Cu2O (ultrathin film shell) nanorods are highly active and stable in photocatalytic water reduction. The TiO2 core and Cu2O ultrathin film shell respectively act as the photosensitizer and cocatalyst, and both the photoexcited electrons in the conduction band and the holes in the valence band of TiO2 respectively transfer to the conduction band and valence band of the Cu2O ultrathin film shell. Our results unambiguously show that Cu2O itself can act as the highly active and stable cocatalyst for photocatalytic water reduction.
部门归属	[liu, yuanxu ; luo, liangfeng ; wang, zhonglei ; wu, erlong ; huang, weixin] univ sci & technol china, hefei natl lab phys sci microscale, cas key lab mat energy convers, dept chem phys, hefei 230026, peoples r china ; [zhang, bingsen ; su, dangsheng] chinese acad sci, catalysis & mat div, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [chen, xuanye] hefei univ technol, sch chem & chem engn, hefei 230009, peoples r china
关键词	Core-shell Structures Cu2o Thin Films Interfaces Photocatalysis Redox Reaction
资助者	National Basic Research Program of China [2013CB933104]; National Natural Science Foundation of China [21525313, 21173204, U1332113]; Chinese Academy of Sciences [KJZD-EW-M03]; MOE Fundamental Research Funds for the Central Universities [WK2060030017, WK2060030022]; Collaborative Innovation Center of Suzhou Nano Science and Technology
收录类别	sci
语种	英语
WOS记录号	WOS:000368057400050
引用统计	被引频次：110[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75217
专题	中国科学院金属研究所
通讯作者	huangwx@ustc.edu.cn
推荐引用方式 GB/T 7714	Liu, Yuanxu,Zhang, Bingsen,Luo, Liangfeng,et al. TiO2/Cu2O Core/Ultrathin Shell Nanorods as Efficient and Stable Photocatalysts for Water Reduction[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2015,54(50):15260-15265.
APA	Liu, Yuanxu.,Zhang, Bingsen.,Luo, Liangfeng.,Chen, Xuanye.,Wang, Zhonglei.,...&huangwx@ustc.edu.cn.(2015).TiO2/Cu2O Core/Ultrathin Shell Nanorods as Efficient and Stable Photocatalysts for Water Reduction.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,54(50),15260-15265.
MLA	Liu, Yuanxu,et al."TiO2/Cu2O Core/Ultrathin Shell Nanorods as Efficient and Stable Photocatalysts for Water Reduction".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 54.50(2015):15260-15265.