Photo-oxidation of NH3 over various TiO2

被引：39
|
作者：
Yamazoe, Seiji [1 ]
Okumura, Taro [1 ]
Tanaka, Tsunehiro [1 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Kyoto 6158510, Japan
来源：
CATALYSIS TODAY | 2007年 / 120卷 / 02期
基金：
日本科学技术振兴机构;
关键词：
TiO2; photocatalyst; ammonia oxidation; SCO; NH3; oxygen anion radical; amide radical;
D O I：
10.1016/j.cattod.2006.07.053
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Photo-oxidation of NH3 (photo-SCO) takes place at room temperature over TiO2 photocatalyst. From the results of photo-SCO reaction over various TiO2, we found that JRC-TIO-8 exhibited the best activity and 100% NH3 conversion was achieved at GHSV = 25,000 h(-1). ESR study revealed that the photo-SCO proceeds by the reaction between NH2 radical and oxygen anion radical species. We found that the photo-SCO activity correlated to the amount of the NH3 chemisorption amount of TiO2 and the oxygen anion radical species. In particular, the produced amount of O-3(-) radical is more active in the photo-SCO. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：220 / 225
页数：6
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