Study of WO3 incorporated C-TiO2 nanotubes for efficient visible light driven water splitting performance

被引：47

作者：

Lai, Chin Wei ^{[1
]}

Sreekantan, Srimala ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Perai 14300, Pulau Pinang, Malaysia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 547卷

关键词：

C-TiO2; nanotubes; WO3; Sputtering; Water splitting; Charge carriers; TIO2; NANOTUBES; HYDROGEN GENERATION; DOPED TIO2; PHOTOELECTROCHEMICAL PROPERTIES; SOLAR-ENERGY; ARRAYS; BEHAVIOR; ECONOMY; DESIGN; GROWTH;

D O I：

10.1016/j.jallcom.2012.08.121

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Incorporation of WO3 into C-TiO2 nanotubes was prepared via RF sputtering technique to improve water splitting performance. Optimum WO3 content incorporated into C-TiO2 nanotubes play a crucial role in improving the photocurrent density by suppressing the recombination of charge carriers. The experimental results showed that WO3 incorporated C-TiO2 nanotubes for 30 s sputtering duration exhibited a maximum photocurrent density and good photoresponse than that of C-TiO2 nanotubes under visible light illumination, which is about 2 times improvement in water splitting performance. The presence of optimum contents of WO3 in TiO2 will act as mediators for trapping photo-induced electrons and minimize the recombination losses. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：43 / 50

页数：8

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