Effect of Substituents on TiO2 Photocatalytic Oxidation of trans-Stilbenes

被引:2
|
作者
Miyake, Teruyuki [1 ]
Hashimoto, Yuichiro [1 ]
Jinnai, Seihou [1 ]
Oketani, Ryusei [1 ]
Higashida, Suguru [1 ]
机构
[1] Osaka Prefecture Univ, Coll Technol, 26-12 Saiwai, Neyagawa, Osaka 5728572, Japan
基金
日本学术振兴会;
关键词
TiO2; Photocatalyst; Epoxidation; OXYGEN; PARTICLES; ALKENES; RUTILE;
D O I
10.1246/bcsj.20180223
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Photocatalytic reaction of trans-stilbene on TiO2 particles produces benzaldehyde with high selectivity in acetonitrile-water mixed solvent. Introduction of electron-donating substituents to the benzene rings accelerated the reaction. On the other hand, the rate was decelerated by electron-withdrawing substituents. These results suggest that the reaction proceeds by hydroperoxo or hydroperoxy, which were formed on TiO2 surface by UV irradiation, rather than free OH radicals.
引用
收藏
页码:55 / 60
页数:6
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