Pulsed electric field assisted sol-gel preparation of TiO2 nanoparticles

被引：2

作者：

Mani, Rajaboopathi ^{[1
]}

Han, Bing ^{[1
]}

Louhi-Kultanen, Marjatta ^{[1
]}

机构：

[1] Lappeenranta Univ Technol, Sch Engn Sci, Thermal Unit Operat Separat Technol, POB 20, Lappeenranta 53851, Finland

来源：

JOURNAL OF CRYSTAL GROWTH | 2016年 / 451卷

基金：

芬兰科学院;

关键词：

Nucleation; Characterization; Nanomaterials; Titanium compounds; Semiconducting materials; HYDROTHERMAL SYNTHESIS; TITANIUM-DIOXIDE; RAMAN-SPECTRUM; NUCLEATION; DISCHARGE; CRYSTALLIZATION; DEPENDENCE; BROOKITE; FILMS;

D O I：

10.1016/j.jcrysgro.2016.07.017

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

This work studies the effect of a pulsed electric field (PEF) on the precipitation and properties of TiO2 nanoparticles. TiO2 nanoparticles were prepared using pulsed DC electric field assisted sol-gel method. The duration of the PEF treatment was varied to investigate its effect on the particle size of TiO2 nanoparticles. The nanoparticles were characterized by X-ray powder diffraction (XRD), Raman spectroscopy, UV diffuse reflectance spectroscopy (UV-DRS) and transmission electron microscopy (TEM). It was found that TiO2 particles prepared with pulsed electric field assisted sol-gel method had enhanced average crystallite size due to the effect of the pulsed electric field on primary nucleation. The effect of electric field on nanoparticle preparation is interesting which can be used to control the grain and crystallite size of nanoparticle. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：200 / 206

页数：7

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