Controlled synthesis of coaxial core-shell TiO2/Cu2O heterostructures by electrochemical method and their photoelectrochemical properties

被引：14
作者：
Xue, Jinbo [1 ,2 ]
Shen, Qianqian [2 ]
Liang, Wei [1 ,2 ]
Liu, Xuguang [1 ,3 ]
Xu, Bingshe [1 ,2 ]
机构：
[1] Taiyuan Univ Technol, Res Ctr Adv Mat Sci & Technol, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
[3] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Peoples R China
来源：
MATERIALS LETTERS | 2013年 / 92卷
基金：
中国国家自然科学基金;
关键词：
Coaxial core-shell heterostructure; Microstructure; Semiconductors; Solar energy materials; PHOTOCATALYTIC ACTIVITY; TIO2; TIO2-CU2O; LAYERS;
D O I：
10.1016/j.matlet.2012.10.127
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Coaxial heterostructures based on n-type TiO2 nanotubes (TNTs) arrays enclosed with p-type Cu2O nanoparticles were prepared through a combination of anodic oxidation and subsequent electrodeposition. Cu2O nanoparticles were electrodeposited into the inter-tubular space of TNTs to form the coaxial core-shell TNTs@Cu2O heterostructures. The Cu2O nanoparticles were preferentially deposited on the ribs of TNTs arrays, and the amount of thiourea added during electrodeposition of Cu2O played an important role in formation of coaxial core-shell TNTs@Cu2O heterostructures. The heterostructures exhibited excellent photoelectrochemical performance under visible light. Such heterostructures would serve as a promising candidate for solar energy conversion. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：239 / 242
页数：4
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