Effect of annealing temperature on phase transition and optical property of titanate nanotubes prepared by ion exchange approach

被引：26

作者：

Wang, Ning ^{[1
]}

Lin, Hong ^{[1
]}

Li, Jianbao ^{[1
]}

Yang, Xiaozhan ^{[1
]}

Chi, Bo ^{[1
]}

Lin, Chunfu ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 424卷 / 1-2期

基金：

国家高技术研究发展计划(863计划);

关键词：

nanostructure; nanofabrication; phase transition; optical properties;

D O I：

10.1016/j.jallcom.2005.12.021

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：

In this paper, the effect of the annealing temperature on the phase transition and optical property of titanate nanotubes was discussed in detail. TGA results indicated that the dehydration process happened when titanate nanotubes were annealed. Up to 450 degrees C, the weight loss ceased entirely. XRD results showed that anatase and triclinic Ti5O9 were formed in annealed samples. TEM was used to observe the micrographs of samples. SAED patterns indicated that the granular phase and the rod-shaped crystal were triclinic Ti5O9 and anatase, respectively. In addition, UV-vis diffuse reflectance spectra were used to study the optical band gap of samples annealed at different temperature. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：311 / 314

页数：4

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