Preparation and characterization of La doped TiO2 nanoparticles by sol-hydrothermal method

被引：0

作者：

Jing, LQ ^{[1
]}

Sun, ZH ^{[1
]}

Wang, BQ ^{[1
]}

Qu, YC ^{[1
]}

Fu, HG ^{[1
]}

机构：

[1] Heilongjiang Univ, Key Lab Phys Chem, Sch Chem & Mat Sci, Harbin 150080, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2005年 / 20卷 / 04期

关键词：

TiO2; sol-hydrothermal method; La; doping; photocatalysis;

D O I：

暂无

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

TiO2 nanoparticles doped with different content of La were prepared by a sol-hydrothermal method, and also characterized by surface photovoltage spectroscopy (SPS) and photoluminescence (PL) spectra. The effect of La dopant content and calcination temperature on surface photoelectrical and photoluminescence performance was investigated, and their inherent relationships discussed. The results show that an appropriate content of La dopant could effectively enhance the photocatalytic activity of TiO2 calcined at appropriate temperature. Moreover, there are certain relationships among SPS and PL and the activity, i.e., the stronger the SPS and PL signals, the larger the separation rate of photoinduced electron-hole pairs, the higher the photocatalytic activity of La doped TiO2 nanoparticles.

引用

页码：789 / 793

页数：5

共 14 条

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