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

被引：136
|
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：
美国国家科学基金会; 中国国家自然科学基金;
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.
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页码：199 / 203
页数：5
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