Microwave-hydrothermal process for the synthesis of rutile

被引：58

作者：

Baldassari, S

Komarneni, S ^{[1
]}

Mariani, E

Villa, C

机构：

[1] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

[2] Univ Genoa, DiSciFar, I-16132 Genoa, Italy

来源：

MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 11期

关键词：

ceramics; nanostructures; oxides; chemical synthesis; X-ray diffraction;

D O I：

10.1016/j.materresbull.2005.05.023

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The synthesis of pure rutile titanium dioxide is not an easy achievement, as the crystallization process generally leads to mixtures of two or even three phases; moreover the synthetic processes normally used by industry require harsh reaction conditions. We carried out the synthesis of titanium dioxide from an aqueous titanium tetrachloride solution under microwave irradiation in the reaction time range of 5-120 min. We mostly obtained mixtures of rutile and anatase, but obtained single-phase rutile after a 2-h treatment at 160 degrees C; transmission electron micrographs revealed well-dispersed spherical nanoparticles. We also investigated the effects of dilution and addition of a dispersant (polyvinylpyrrolidone) on phase crystallization and particle shape. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2014 / 2020

页数：7

共 19 条

[1]

HYDROTHERMAL PREPARATION OF UNIFORM NANOSIZE RUTILE AND ANATASE PARTICLES [J].