Sustained production of H2O2 on irradiated TiO2 -: fluoride systems

被引：168
|
作者：
Maurino, V
Minero, C
Mariella, G
Pelizzetti, E
机构：
[1] Univ Turin, Dipartimento Chim Analit, I-10125 Turin, Italy
[2] Nanostructured Interfaces & Surfaces Ctr Excellen, NIS, I-10125 Turin, Italy
来源：
CHEMICAL COMMUNICATIONS | 2005年 / 20期
关键词：
D O I：
10.1039/b418789j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
UV irradiation of fluorinated TiO2 suspensions in water, in the presence of oxygen and a hole scavenger, leads to the production of H2O2 with steady state concentration levels up to 1.3 millimolar; the H2O2 formation rate follows the TiO2 surface speciation, being maximum when the surface is completely covered by =Ti - F groups; these results outline the importance of surface speciation on the photocatalytic process.
引用
收藏
页码：2627 / 2629
页数：3
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