期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 250, 期 -, 页码 72-77出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2012.09.015
关键词
Uranyl nitrate; Titanium dioxide; Volatile organic compounds; Photocatalytic oxidation; Visible light
资金
- Russian Federation [NSh 524.2012.3]
- Department of Science and Education [8440]
- Russian-Belarus joint project Photochemistry of new coordination compounds [33]
Gas-phase photocatalytic oxidation (PCO) of ethanol vapor in a batch reactor using UO2(NO3)(2)-modified titania, alumina and silica as photocatalysts was studied. The uranyl nitrate content was varied from 0.2 to 10 wt.%. Special optical glass filters were placed between the light source and reactor to cutoff the UV light. Photooxidation experiments under the visible light irradiation demonstrated that UO2(NO3)(2) loading on TiO2 improves its activity in the ethanol photooxidation and CO2 formation. The influence of support and uranyl nitrate content on the ethanol vapor PCO was investigated. The rate of ethanol oxidation increased with the increase of uranyl content. Alumina and silica based photocatalysts demonstrated almost the same photoactivity whereas the titania based photocatalyst had at least a five times higher rate of the acetaldehyde accumulation. All the synthesized photocatalysts oxidize ethanol even under light with wavelength higher than 470 nm. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据