Sustained production of H2O2 on irradiated TiO2 -: fluoride systems

被引：170

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

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页码：2627 / 2629

页数：3

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