偏钛酸爆轰合成纳米TiO_2研究

Titanic hydroxide explosive synthesis of nanometer titanium dioxide

首先对纳米二氧化钛的应用及目前现有的合成纳米二氧化钛技术方法及特点做了简单的介绍。其次主要地介绍了以偏钛酸为原料,混合炸药爆轰合成纳米二氧化钛粉末的研究。并用XRD、TEM、DTA/TG和比表面仪等手段对产物进行了表征,分析结果表明所得的二氧化钛粉末为纳米级,晶型为金红石型和锐钛矿型的混晶,颗粒呈球形和片状,锐钛矿型和金红石型平均晶粒度大小分别为6.8和24nm,纳米粉末的比表面积为116.8m2/g。

Firstly,the exiting technique and methods of the synthesized nanometer titanium dioxide were briefly introduced. Secondly, the experimentation research of ultrfine titamium dioxide formed by the mixture detonation of titanic hydroxide and explosive. Properties of TiO2 ultrafine particles were charactered by XRD, TEM, DTA/TG, BET. The results showed that the as-prepared particles which are globose and sheet are nanometer, and the powders are futile and anatase phase, the average size of this two phase were 6.8nm and 24nm. The specific surface area of the powders was 116.8m^2/g.