中山大学学报(自然科学版)2007，Vol.46Issue(z1)：11-12,20,3.
V5+、Ho3+共掺杂TiO2光降解甲基橙
Photodegradation of Methyl Orange by V5+ and Ho3+ Co-doped TiO2
石建稳 1郑经堂 1陈姣霞 1赵玉翠1
作者信息
- 1. 中国石油大学(华东)重质油国家重点实验室,山东,东营,257061
- 折叠
摘要
Abstract
The un-doped, single-doped and co-doped TiO2 nanoparticles have been prepared by sol-gel method and characterized with X-ray diffraction (XRD) and UV-Vis absorption spectra, and their photocatalytic activity have been investigated by photocatalytic oxidation of methyl orange. It is found that V5+ doping broadens the absorption profile, improves photo utilization of TiO2, and then generates more electron-hole pairs. Ho3+ doping restrains the increase of grain size, leads to crystal expansion and matrix distortion and retards the recombination of the photoexcited carriers. The photocatalytic activity of TiO2 co-doped with V5+ and Ho3+ ions is improved related to the cooperative actions of the two dopants.关键词
二氧化钛/光催化/共掺杂/钒/钬Key words
TiO2/ photocatalysis/ co-doped/ vanadium/ holmium分类
矿业与冶金引用本文复制引用
石建稳,郑经堂,陈姣霞,赵玉翠..V5+、Ho3+共掺杂TiO2光降解甲基橙[J].中山大学学报(自然科学版),2007,46(z1):11-12,20,3.
