摘要
采用多重乳液法制备纳米二氧化钛,研究了运用多重乳液法制备二氧化钛的现实意义。将钛酸四正丁酯以一定比例溶于外油相中,再加入一个水包油的微乳液内相,生成O/W/O型多重乳液体系,钛盐在水相中水解形成空腔状的纳米二氧化钛颗粒,用X光衍射仪对其进行了表征,得知产物为锐钛型纳米TiO2,并进行了紫外-可见吸收分析。结果表明,材料吸收带有一定程度的蓝移,即表明纳米颗粒变小,纳米尺寸效应明显。
Preparation of titanium dioxide with cavity by multiple emulsion （O/W/O）. Outer oil soluble phase with a certain percentage of Tetrabutyl titanate is added to an oil-in-water mieroemulsion phase,generating O/W/O type multiple emulsion system. Tetrabutyl titanate in the water phase hydrolyzes to titanium dioxide particles with cavity characterizing by x-ray diffraction and microscopy. The sample obtained is the anatase nano-TiO2 and UV - visible absorption analysis showed that the material with a certain the blue shift,which shows that the sample obtained is nanoparticles with nano-size effect.
出处
《安徽化工》
CAS
2009年第4期33-36,共4页
Anhui Chemical Industry
关键词
多重乳液
制备
空腔状
纳米二氧化钛
multiple emulsion
preparation
cavity-like
nano-titanium dioxide
