| 溶胶-凝胶法制备TiO_2凝胶的影响因素及方法改进 |
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| 引用本文： | 杨依隆,辛秀兰,胡代强,秦省军. 溶胶-凝胶法制备TiO_2凝胶的影响因素及方法改进[J]. 北京工商大学学报(自然科学版), 2007, 25(3): 9-13 |
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| 作者姓名： | 杨依隆 辛秀兰 胡代强 秦省军 |
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| 作者单位： | 北京工商大学,化学与环境工程学院,北京,100037 |
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| 摘 要： | 研究了溶胶-凝胶法制备TiO2溶胶的胶凝过程,以钛酸丁酯为前驱物,无水乙醇为溶剂,分析了反应物滴加速率、溶胶液pH值、反应底物配比、反应温度、无机酸以及螯合剂的种类对凝胶形成时间的影响,得出了适宜的凝胶制备条件,并对制备稳定均一TiO2凝胶的方法进行了分析和改进.
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| 关 键 词： | 溶胶-凝胶法 螯合剂 TiO2凝胶 凝胶时间 |
| 文章编号： | 1671-1513（2007）03-0009-05 |
| 收稿时间： | 2007-01-03 |
| 修稿时间： | 2007-01-03 |
ANALYSIS ON FACTORS AFFECTING PREPARATION OF TiO2 GEL BY SOL-GEL METHOD |
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| YANG Yi-long,XIN Xiu-lan,HU Dai-qiang,QIN Sheng-jun. ANALYSIS ON FACTORS AFFECTING PREPARATION OF TiO2 GEL BY SOL-GEL METHOD[J]. Journal of Beijing Technology and Business University:Natural Science Edition, 2007, 25(3): 9-13 |
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| Authors: | YANG Yi-long XIN Xiu-lan HU Dai-qiang QIN Sheng-jun |
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| Affiliation: | College of Chemical and Environmental Engineering, Beijing Technology and Business University, Beijing 100037, China |
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| Abstract: | With ethanol as solvent and Ti(OBu)4 as precursor,the process for preparing TiO2 gel by sol-gel method was studied.The influence on the formation of the gel setting time of different reaction conditions,such as dropping the reaction rate,Sol pH,reaction substrate ratio,the reaction temperature,type of inorganic acid and complexing reagent,were analyzed.For the common method and some modified methods,the optimal reaction conditions are detected and compared respectively. |
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| Keywords: | sol-gel method complexing reagent TiO2 gels gel time |
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