Highly efficient CuO incorporated TiO2 nanotube photocatalyst for hydrogen production from water

被引：209

作者：

Xu, Shiping ^{[1
]}

Du, Alan Jianhong ^{[1
]}

Liu, Jincheng ^{[1
]}

Ng, Jiawei ^{[1
]}

Sun, Darren Delai ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 11期

关键词：

TiO2; nanotube; CuO; Hydrogen production; VISIBLE-LIGHT; METHANOL SOLUTION; GENERATION; REDUCTION; ION; CDS;

D O I：

10.1016/j.ijhydene.2011.02.103

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：

Highly dispersed CuO was introduced into TiO2 nanotube (TNT) made by hydrothermal method via adsorption-calcination process or wet impregnation process, to fabricate CuO incorporated TNT photocatalysts (CuO-TNT) for hydrogen production. It was found that CuO-TNT possessed excellent hydrogen generation activity, which was constantly vigorous throughout 5 h reaction. Depending on the preparation method, hydrogen evolution rates over CuO-TNT were founded in the range of 64.2-71.6 mmol h(-1) g(-1) catalystt which was much higher than the benchmark P25 based photocatalysts, and even superior to some Pt/Ni incorporated TNT. This high photocatalytic activity of CuO-TNT was mainly attributed to the unique 1-D tubular structure, large BET surface area and high dispersion of copper component. Compared to wet impregnation, adsorption-calcination process was superior to produce active photocatalyst, since it was prone to produce photocatalyst with more highly dispersed CuO. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：6560 / 6568

页数：9

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