| TiO2颗粒表面包覆SiO2纳米膜的动力学模型 |
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| 引用本文： | 崔爱莉,王亭杰,金涌.TiO2颗粒表面包覆SiO2纳米膜的动力学模型[J].高等学校化学学报,2000,21(10):1560-1562. |
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| 作者姓名： | 崔爱莉 王亭杰 金涌 |
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| 作者单位： | 1. 清华大学化学系;
2. 清华大学化工系, 北京 100084 |
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| 摘 要： | 针对液相法二氧化钛颗粒表面包覆氧化硅纳米膜的过程,提出包覆过程是溶胶凝胶机制,研究了表面成膜的动力学方程,考察了成膜剂浓度和成膜过程中温度对成膜速度的影响,并通过实验对氧化硅膜形成的动力学方程进行了验证.
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| 关 键 词： | 包覆 溶胶凝胶 动力学 二氧化硅 二氧化钛 |
| 文章编号： | 0251-0790(2000)10-1560-03 |
| 收稿时间： | 1999-12-13 |
The Dynamic Model of the Coating Process of Silicon Dioxide Nonafilm on Titanium Dioxide Particles |
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| CUI Ai-li,WANG Ting-jie,JIN Yong.The Dynamic Model of the Coating Process of Silicon Dioxide Nonafilm on Titanium Dioxide Particles[J].Chemical Research In Chinese Universities,2000,21(10):1560-1562. |
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| Authors: | CUI Ai-li WANG Ting-jie JIN Yong |
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| Institution: | 1. Department of Chemistry, Tsinghua University, Beijing 100084, China;
2. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | A sol-gel mechanism is proposed in this research for the process of silicon dioxide film coating on Titanium dioxide particles. The dynamic process of film forming on the particle surface is researched. The influence of temperature and concentration on film formation rate is researched. The dynamic equation of the film formation of silicon dioxide is obtained from the experiments. The theoretically calculation results are consistent with the experimental results. |
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| Keywords: | Coating Sol gel Dynamic Silicon dioxide Titanium dioxide |
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