Hydrothermal synthesis, characterization, and photocatalytic performances of Cr incorporated, and Cr and Ti co-incorporated MCM-41 as visible light photocatalysts for water splitting

被引：58

作者：

Shen, Shaohua ^{[1
]}

Guo, Liejin ^{[1
]}

机构：

[1] Xian Jiaotong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China

来源：

CATALYSIS TODAY | 2007年 / 129卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

incorporated MCM-41; photocatalyst; hydrogen evolution; visible light;

D O I：

10.1016/j.cattod.2006.08.070

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of Cr incorporated, and Cr and Ti co-incorporated MCM-41 photocatalysts were synthesized by hydrothermal method. X-ray diffraction (XRD), UV-vis diffuse reflectance spectra (UV-vis), Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence analysis (XRF), N-2 adsorption-desorption isotherms and Raman spectra were used to investigate the effects of the incorporated elements on the structure of MCM-41. The experimental results for photocatalytic water splitting under visible light irradiation (lambda > 430 nm) demonstrated that the photocatalytic activities of Cr-MCM-41 and Cr-Ti-MCM-41 catalysts for hydrogen production decreased with an increase in the amount of Cr incorporated. Compared with the Cr-MCM-41 which had the same amount of incorporated Cr, the Cr-Ti-MCM-41 exhibited much higher hydrogen evolution activities. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：414 / 420

页数：7

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