Record number :
1011396
Title of article :
Preparation of nanocrystalline Sn–TiO2−X via a rapid and simple stannous chemical reducing route
Author/Authors :
Baifu Xin، نويسنده , , Dandan Ding، نويسنده , , Yina Gao، نويسنده , , Xinghai Jin، نويسنده , , Honggang Fu *، نويسنده , , Peng Wang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
6
From page :
5896
To page :
5901
Abstract :
The Sn–TiO2−X nanoparticles have been prepared via a rapid and simple stannous chemical reducing method. The as-prepared Sn–TiO2−X nanoparticles were investigated by means of surface photovoltage spectroscopy (SPS), XPS, and DRS technology as well as photocatalytic degradation of RhB were studied under illumination. The experiment results revealed that the reduction of the TiO2 particles raised their Fermi level, which can enhance the driven force of photoinduced electrons transferring from TiO2 to adsorbed O2 and SnO2 on the surface of TiO2. On the other hand, the amount of oxygen vacancies of the Sn–TiO2−X increased after the stannous chemical reduction. The oxygen vacancies can also effectively inhibit the recombination of photoinduced electrons and holes pairs. These factors are favorable to the photocatalytic reaction.
Keywords :
TiO2 , Stannous , Photocatalysis , Chemical reduction
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
2009
Link To Document :
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