Ultrasound with low intensity assisted the synthesis of nanocrystalline TiO2 without calcination

被引：75

作者：

Ghows, Narjes ^{[1
]}

Entezari, Mohamad H. ^{[1
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Chem, Mashhad 91775, Iran

来源：

ULTRASONICS SONOCHEMISTRY | 2010年 / 17卷 / 05期

基金：

美国国家科学基金会;

关键词：

Ultrasound; Low intensity; Titanium tetra-isopropoxide; Hydrolysis; TiO2; nanoparticle; Anatase; SONOCHEMICAL SYNTHESIS; PHOTOCATALYTIC ACTIVITY; TEMPERATURE HYDROLYSIS; TITANIUM-DIOXIDE; ANATASE; NANOPARTICLES; PARTICLES; RUTILE; SIZE; CRYSTALLIZATION;

D O I：

10.1016/j.ultsonch.2010.03.010

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A novel method has been developed for the preparation of nano-sized TiO2 with anatase phase. Nanoparticles with diameter about 6 nm were prepared at a relatively low temperature (75 degrees C) and short time. The synthesis was carried out by the hydrolysis of titanium tetra-isopropoxide (TTIP) in the presence of water, ethanol, and dispersant under ultrasonic irradiation (500 kHz) at low intensity. The results show that variables such as water/ethanol ratio, irradiation time, and temperature have a great influence on the particle size and crystalline phases of TiO2 nanoparticles. Characterization of the product was carried out by different techniques such as powder X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) and UV-vis spectroscopy. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：878 / 883

页数：6

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