溶胶-凝胶法制备纳米二氧化钛的工艺研究

摘要以钛酸丁酯为主要原料,采用溶胶-凝胶法制备纳米二氧化钛。通过对溶胶-凝胶法中各个主要影响因素的考察,得到制备纳米二氧化钛材料的优化工艺条件为:配制无水乙醇与水的混合液,并调节pH=2～3,缓慢加料;钛醇盐与水的摩尔比为2～4,乙醇与钛醇盐摩尔比为6～8,溶胶体系pH=2～3,水解成胶化温度为25℃～30℃。

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	廖东亮
	肖新颜
	张会平
	万彩霞
	陈焕钦

关键词：溶胶-凝胶法纳米二氧化钛钛酸丁酯胶凝时间

Abstract： In this paper,we prepared nanoscale TiO2 with Ti(OC4H9)4 through solgel method.With the work on several important factors,got the optimal technological conditions for preparing nanoscale TiO2,that is nTi(OC4H9)4∶nH2O∶nC2H5(OH)=1∶2～3∶6～8,the pH of mixture should be adjusted to between 2 and 3,H2O and part of C2H5(OH) mixture should be feed slowly. The suitable temperature of hydrolysis and gel reaction is between 25℃～30℃.

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Received 2003-09-15; published 2003-09-15

引用本文:

廖东亮,肖新颜,张会平,万彩霞,陈焕钦.溶胶-凝胶法制备纳米二氧化钛的工艺研究[J]. 化学工业与工程, 2003,20(5): 256-260

LIAO Dong-liang1,XIAO Xin-yan*1,ZHANG Hui-ping1,WAN Cai-xia2,CHEN Huan-qin1.Study on Preparation Technology of Nanoscale TiO_2 with Sol-Gel Method[J]. Chemcial Industry and Engineering, 2003,20(5): 256-260

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