Synthesis of LaCoO3 nanoparticles by microwave process and their photocatalytic activity under visible light irradiation

被引：67
|
作者：
Jung, Won Young [1 ]
Hong, Seong-Soo [1 ]
机构：
[1] Pukyong Natl Univ, Dept Chem Engn, Pusan 608739, South Korea
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2013年 / 19卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
LaCoO3 perovskite oxides; Microwave process; Photocatalytic decomposition; Methyl orange; PEROVSKITE-TYPE OXIDES; REFEO3; RE; GD; SM; EU;
D O I：
10.1016/j.jiec.2012.07.018
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We have investigated the photocatalytic activity for the decomposition of methyl orange on the LaCoO3 perovskite-type oxides prepared at different conditions using microwave process. In the case of LaCoO3 catalysts calcined above 500 degrees C, the formation of the perovskite crystalline phase was confirmed. From the results of UV-Vis DRS, all the catalysts have the similar absorption spectrum up to visible region. The chemisorbed oxygen plays an important role on the photocatalytic decomposition of methyl orange and the higher the contents of chemisorbed oxygen, the better the performance of photocatalyst. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：157 / 160
页数：4
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