Detection of HO2 radicals in the photocatalytic oxidation of methyl ethyl ketone

被引:12
|
作者
Thiebaud, Jerome [1 ]
Parker, Alexander [1 ]
Fittschen, Christa [1 ]
Vincent, Guillaume [2 ]
Zahraa, Orfan [2 ]
Marquaire, Paul-Marie [2 ]
机构
[1] Univ Sci & Tech Lille Flandres Artois, CNRS, UMR8522, F-59655 Villeneuve Dascq, France
[2] Nancy Univ, CNRS, Dept Chim Phys React, F-54001 Nancy, France
来源
JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 07期
关键词
D O I
10.1021/jp711388k
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
The possibility Of HO2 formation and its diffusion into the gas phase during the photocatalytic degradation of methy ethyl ketone (MEK) on TiO2 has been studied using the very sensitive and selective detection method of continuous wave cavity ring down spectroscopy (cw-CRDS), coupled to a continuous photolysis reactor. No HO2 radicals could be detected, given a detection limit of 3.2 x 10(9) cm(-3).
引用
收藏
页码:2239 / 2243
页数:5
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