Photocatalytic activity of titanium dioxide modified with thiourea under the action of visible light

被引：0
|
作者：
P. A. Chubukov
N. N. Denisov
A. A. Gorenberg
G. V. Shilov
Yu. N. Kozlov
I. N. Groznov
V. A. Nadtochenko
机构：
[1] Moscow Institute of Physics and Technology,Institute of New Chemical Problems
[2] Russian Academy of Sciences,Semenov Institute of Chemical Physics
[3] Russian Academy of Sciences,undefined
来源：
Russian Journal of Physical Chemistry A, Focus on Chemistry | 2008年 / 82卷
关键词：
Photocatalytic Activity; Thiourea; Visible Light; Sulfur Atom; Visible Spectral Range;
D O I：
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中图分类号：
学科分类号：
摘要：
Photocatalyst powders were synthesized from nanosized titanium dioxide crystals modified by sintering with thiourea (TU). The powders contained anatase crystals of various sizes. TU-TiO2 powders absorbed visible light to produce an oxidizer (oxidizing iodide) and a reducing agent (reducing tetranitromethane). The activity of TU-TiO2 correlated with the size of nanocrystals. The photocatalytic activity of TU-TiO2 was suggested to be related to impurity states appearing during modification in the forbidden band of TiO2.
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页码：1575 / 1579
页数：4
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