Synthesis and photocatalytic properties of Cr-doped KSr2Nb3O10 for hydrogen production

被引：23

作者：

Hu, Yuchao ^{[1
]}

Guo, Penghui ^{[1
]}

Guo, Liejin ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 01期

基金：

中国国家自然科学基金;

关键词：

K1+2xSr2Nb3-xCrxO10; Photocatalyst; Hydrogen production; H+ exchange; WATER; FUTURE; TIO2;

D O I：

10.1016/j.ijhydene.2011.03.050

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：

A series of Cr-doped layered niobates were synthesized by solid state method in this paper and were characterized by powder X-ray diffraction, UV-vis diffuse reflection spectrum and scanning electron microscope. Their photocatalytic hydrogen evolution activities were tested in a 20vol% methanol aqueous solution as electron donor under UV light irradiation. The results proved that the Cr doping amount had an important effect on the photocatalytic activity of the catalysts. The highest photocatalytic activity was obtained when the doping amount was 1.25 mol%. H+ replacement improved the hydrogen evolution rate further. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1007 / 1013

页数：7

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