Effect of lanthanum doping on the photocatalytic activity of titanium dioxide

被引：25

作者：

Shui, M ^{[1
]}

Yue, LH ^{[1
]}

Xu, ZD ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2000年 / 16卷 / 05期

关键词：

lanthanum doping; photocatalytic activity; titanium dioxide; lattice expansion;

D O I：

10.3866/PKU.WHXB20000517

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of Lanthanum content, calcinating temperature and calcinating time on the photocatalytic activity of Lanthanum doping TiO2 was investigated. The study showed that samples treated under higher temperature and longer calcinating time exhibited higher photocatalytic activity. The X -ray diffraction pattern revealed that the lattice of those samples was highly expanded, It is suggested that the highly distorted crystal lattice may be involved in producing more ways by which the hole was captured. Thus, the photocatalytic activity of samples treated under higher temperature and longer time was promoted.

引用

页码：459 / 463

页数：5

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