Photocatalytic activities for hydrogen evolution of new layered compound series HLaTax/3Nb2-x/3O7/Pt (x=0, 2, 3, 4, and 6)

被引：4
作者：
Li, Yibin [1 ]
Huang, Yunfang [1 ]
Wu, Jihuai [1 ]
Huang, Miaoling [1 ]
Lin, Jianming [1 ]
机构：
[1] Huaqiao Univ, Inst Mat Phys Chem, Coll Mat Sci & Engn, Huaqiao Univ Fujian Higher Educ,Key Lab, Quanzhou 362021, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2010年 / 177卷 / 1-3期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
Hydrogen evolution; Photocatalytic activity; Layered compound; Perovskites; VISIBLE-LIGHT IRRADIATION; EXHIBITING ION-EXCHANGE; PEROVSKITE STRUCTURE; WATER; OXIDE; NANOCOMPOSITES; RB; NA; LA; LN;
D O I：
10.1016/j.jhazmat.2009.12.055
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
HLaTax/3Nb2-x/3O7 were synthesized by successive reactions of conventional solid-state reaction followed by ion exchange reaction. They were characterized by power X-ray diffraction, UV-vis diffusive reflectance and scan electron microscope. The effect of substitution of Ta for Nb in HLaNb2O7 has been studied on the photocatalytic decomposition of water under UV light irradiation with methanol as electron donor and Pt as promoter catalyst. The x value in HLaTax/3Nb2-x/3O7 had an important effect on the photocatalytic activity of the catalyst. When x = 2, HLaTa2/3Nb4/3O7/Pt shows a photocatalytic activity of 136 cm(3) g(-1) h(-1) hydrogen evolution in rate 10 vol.% methanol aqueous solution under irradiation with wavelength more than 290 nm from a 100-W mercury lamp. (C) 2009 Elsevier BM. All rights reserved.
引用
收藏
页码：458 / 464
页数：7
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