Sonochemical preparation of TiO2 nanoparticles

被引：101

作者：

Arami, Hamed ^{[1
]}

Mazloumi, Mahyar ^{[1
]}

Khalifehzadeh, Razieh ^{[1
]}

Sadmezhaad, S. K. ^{[1
]}

机构：

[1] Mat & Energy Res Ctr, Tehran, Iran

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 23-24期

关键词：

ceramics; nanomaterials; sonochemistry;

D O I：

10.1016/j.matlet.2007.02.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiO2 nanoparticles with mean diameter of about 20 nm, average crystallite size of 15 nm and BET specific surface area of 78.88 m(2)/g, were prepared through a simple sonochemical method and initial treatment in 10 M NaOH aqueous solution. XRD results exhibited that the obtained nanoparticles composed of pure rutile phase. During the initial treatment with NaOH aqueous solution, the Ti-O-Ti bonds in the TiO6 octahedra structure of the raw material were broken, and new octahedras formed after ultrasonic irradiation. It is supposed that edge sharing was favored during ultrasonic treatment, leading to formation of the rutile nanoparticles. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：4559 / 4561

页数：3

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