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孔结构梯度分布SiO2膜的仿生合成

Acta Chimica Sinica(2001)

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Abstract
以正硅酸乙酯为硅源,十六烷基三甲基溴化铵大分子的组装体为有机模板,研究在气-液界面仿生合成SiO2膜的过程.考察了影响成膜的主要因素并优化了操作条件,进而仿生合成了孔结构梯度分布的无机膜.SEM与孔径分布表征,表明所制备的SiO2膜顶层孔径为1.9 Rm,底部的则为25nm,膜的比表面积为313.5m2·g-1.
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Key words
Biomimetic,Biomineralization,Self - assembling,Silica membrane
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