Synthesis of nanocrystalline TiO2 at 100 °C

被引：67

作者：

Dhage, SR

Choube, VD

Samuel, V

Ravi, V ^{[1
]}

机构：

[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India

[2] Natl Chem Lab, Catalysis Div, Pune 411008, Maharashtra, India

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 17-18期

关键词：

ceramics; oxides; chemical synthesis; thermogravimetric analysis (TGA); X-ray diffraction;

D O I：

10.1016/j.matlet.2004.02.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple gel to crystal conversion route has been followed for the preparation of TiO2 at 80-100 degreesC under refluxing conditions. Freshly prepared titanium hydroxide gel is allowed to crystallize under refluxing and stirring conditions for 6-12 h. Formation of nanocrystallites of anatase is confirmed by X-ray diffraction (XRD) study. The anatase phase converts into rutile when calcined at 700 degreesC for 12 h. Raman scattering experiments were also performed to confirm both anatase and rutile phases. Transmission electron microscope (TEM) investigations revealed that the average particle size is 10 nm for the anatase phase whereas it is 35 nm for the rutile polymorph. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：2310 / 2313

页数：4

共 17 条

[1] PHOTOCATALYTIC HYDROGENATION OF CH3CCH WITH H2O ON SMALL-PARTICLE TIO2 - SIZE QUANTIZATION EFFECTS AND REACTION INTERMEDIATES [J].