期刊
CATALYSIS COMMUNICATIONS
卷 13, 期 1, 页码 14-17出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2011.06.016
关键词
TiO2 nanoparticles; Si doping; Photoelectrochemical property; Photocatalytic activity
资金
- National Natural Science Foundation of China [20933007]
Si-doped TiO2 nanoparticles with anatase crystalline phase were prepared by a hydrothermal method using acetic acid as the solvent. Photoelectrochemical studies showed that the photocurrent value for the 15% Si-doped TiO2 electrode (54.4 mu A) was much higher than that of the pure TiO2 electrode (16.7 mu A). In addition, the 15% Si-doped TiO2 nanoparticles displayed the highest photocatalytic activity under ultraviolet light irradiation. So doping suitable amount of Si in TiO2 nanoparticles was profitable for transferring photogenerated electrons and inhibiting the recombination of photogenerated electrons and holes. As a result, the photocatalytic activity of TiO2 nanoparticles was improved. (C) 2011 Elsevier B.V. All rights reserved.
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