MWNT-TiO2:Ni composite catalyst:: A new class of catalyst for photocatalytic H2 evolution from water under visible light illumination

被引：137

作者：

Ou, Yan ^{[1
]}

Lin, Jingdong ^{[1
]}

Fang, Shumei ^{[1
]}

Liao, Daiwei ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Inst Phys Chem, Xiamen 361005, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 429卷 / 1-3期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

D O I：

10.1016/j.cplett.2006.08.024

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：

Multi-walled carbon nanotube, TiO2 and Ni composite catalysts (MWNT-TiO2:Ni) were prepared by a modified chemical vapor deposition. The nanoscaled composite materials were extensively characterized by TG, SEM, Raman and UV-vis spectra. The photoactivity of the catalyst for H-2 evolution was investigated in the presence of methanol sacrificial reagent under visible light illumination. The rate of H-2 evolution was 38.1 mu mol/h at a weight ratio of MWNT/TiO2 equal to 4.4%. The experimental results were rationalized by assuming that MWNTs serve as photo sensitizer, synergetic with metallic Ni, greatly enhancing the activity of visible light-responsive photocatalyst. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：199 / 203

页数：5

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