Synthesis, characterization of Pr-TiO2 nanoparticles and their photocatalytic mechanism

被引：4
|
作者：
Huang, Fengping [1 ]
Fan, Yingge [2 ]
Sun, Jingjing [2 ]
机构：
[1] Shaanxi Univ Sci & Technol, Key Lab Auxiliary Chem & Technol Chem Ind, Minist Educ, Xian 710021, Shaanxi, Peoples R China
[2] Shaanni Univ Sci Technol, Coll Chem & Chem Engn, Xian 710021, Peoples R China
来源：
ADVANCED MATERIALS AND PROCESSES II, PTS 1-3 | 2012年 / 557-559卷
关键词：
Pr-TiO2; sol-gel; nanoparticle; photocatalyst; DOPED TIO2;
D O I：
10.4028/www.scientific.net/AMR.557-559.497
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Pr-TiO2 photocatalyst samples were prepared by sol-gel method for improving the photocatalytic activity of TiO2. The resulting materials were analyzed by XRD, SEM, TEM, and XPS. The photocatalytic activity of the catalysts was evaluated by degradation of methyl orange under UV irradiation. It was found Pr doping retard the growth of crystalline size and the phase transformation from anatase to rutile. Praseodymium doping could bring about remarkable improvement in the photoactivity. This high activity was attributed to produce the lattice distortion and inhibit efficiently of the recombination of the electron-hole by Pr3+.
引用
收藏
页码：497 / +
页数：2
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