Formation of TiO2 nano-fiber doped with Gd3+ and its photocatalytic activity

被引：34
|
作者：
Zhou, WY [1 ]
Zhou, Y
Tang, SQ
机构：
[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
[2] Changsha Univ Sci & Technol, Dept Environm Chem & Engn, Changsha 410076, Peoples R China
来源：
MATERIALS LETTERS | 2005年 / 59卷 / 24-25期
关键词：
two-step synthesis method; TiO2; nano-fibers; photocatalytic activity;
D O I：
10.1016/j.matlet.2005.05.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide (TiO2) nano-fibers doped with Gd3+ were synthesized by two-step synthesis method. The formed fibers were visualized from transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results showed that the average diameter of the TiO2 nanofibers was 60-80 nm and the length of fibers was in the range of 6-7 mu m. The TiO2 nano-fibers doped with Gd3+ heat treated in glycerol solvent had smaller crystal size than those without heat treatment. However, the size of TiO2 nano-fibers decreased with increasing the heating temperature. The results obtained in the photocatalytic degradation of methyl orange indicated that the photocatalytic activity of the TiO2 nano-fibers doped with Gd3+ appeared a little reduction relative to that of TiO2 nanopowders. (C) 2005 Elsevier B.V All rights reserved.
引用
收藏
页码：3115 / 3118
页数：4
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