| 基于溶胶凝胶法的TiO_2溶胶的制备 |
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| 引用本文： | 段济远,李福勤,王军.基于溶胶凝胶法的TiO_2溶胶的制备[J].河北煤炭建筑工程学院学报,2011(1):57-59. |
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| 作者姓名： | 段济远 李福勤 王军 |
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| 作者单位： | [1]河北工程大学城市建设学院,河北邯郸056038 [2]中国科学院生态环境研究中心,北京100085 |
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| 基金项目： | 河北省科技支撑计划项目（11215116D） |
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| 摘 要： | 用N-N二甲基乙酰胺（DMAC）作溶剂,钛酸丁酯作前驱物,冰乙酸为稳定剂,通过溶胶凝胶法制得了二氧化钛（TiO2）溶胶,并且对加水方式、加水量、溶剂量、pH值、温度等影响因素进行了考察。结果表明,当采用分散加水方式,温度在25℃～35℃以下,DMAC与钛酸丁酯的体积比为3.5：1,V（H2O）/V（Ti（OC4H9）4）为2～3,pH值为2～4时所得TiO2溶胶稳定,透明性好,可用作聚合物与纳米二氧化钛复合膜的研制的添加剂。
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| 关 键 词： | TiO2溶胶 DMAC 溶胶凝胶法 |
Preparation of TiO_2 sol by sol-gel method |
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| Authors: | DUAN Ji-yuan LI Fu-qin WANG Jun |
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| Affiliation: | 1.College of City Construction,Hebei University of Engineering,Hebei Handan 056038,China;2.Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China) |
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| Abstract: | TiO2 sol is prepared by the sol-gel method using Dimethylacetamide（DMAC） as a impregnant,tetrabutyltitanate（TBT） as a precursor and acetic acid as a stabilizer.And the effect ingredients have been investigated including the way of adding water,mole ratio of water to TBT,volume ratio of DMAC to TBT,pH value and temperature.It suggests that the TiO2 sol obtained is stable and lucid which can be used as a additive to prepare polymer and nanometer TiO2 composite membrane,if the way of adding water dispersedly is adopted and when temperature is between 25 to 35℃,the volume ratio of DMAC to TBT is 3.5：1,the mole ratio of water to TBT range from 2 to 3,the value of pH is between 2 to 4. |
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| Keywords: | TiO2 sol DMAC sol-gel method |
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