| 混合表面活性剂模板法合成立方相介孔含钛氧化硅 |
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| 引用本文： | 王彤文,陈旌蕾,戴乐蓉.混合表面活性剂模板法合成立方相介孔含钛氧化硅[J].物理化学学报,2000,16(5):385-388. |
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| 作者姓名： | 王彤文 陈旌蕾 戴乐蓉 |
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| 作者单位： | College of Chemistry and Molecular Engineering,Peking University,Beijing 100871 |
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| 基金项目： | 国家攀登计划!(97021107)，国家自然科学基金重大项目!(299925904)资助 |
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| 摘 要： | 自1992年Ｍｏｂｉｌ公司的Ｍ41Ｓ系列介孔氧化硅分子筛问世以来1,2],借助表面活性剂液晶模板方法合成各种孔结构与不同大小孔径的硅基分子筛材料引起了人们的极大兴趣,目前多数工作仍然集中于六方相的介孔分子筛.具有双连续的三维交织立方排列孔道结构的ＭＣＭ48由于其孔道不易堵塞和良好的骨架结构稳定性3,4],在催化、吸附和与其为载体的制备等方面具有独特的应用价值.但由于液晶模板形成立方相区的范围非常狭窄,相应的分子堆积比对模板剂分子几何结构要求较苛刻,采用单一表面活性剂为模板剂合成时,条件难以掌握,制备ＭＣＭ48十分困难.Ｈ…
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| 关 键 词： | 混合表面活性剂 立方相 介孔含钛氧化硅 |
| 收稿时间： | 2000-01-12 |
| 修稿时间： | 2000-01-12 |
Synthesis of Cubic Mesoporous Titanium-containing Silica by Mixed Surfactant Templating |
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| Wang Tongwen,Chen Jinglei,Dai Lerong.Synthesis of Cubic Mesoporous Titanium-containing Silica by Mixed Surfactant Templating[J].Acta Physico-Chimica Sinica,2000,16(5):385-388. |
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| Authors: | Wang Tongwen Chen Jinglei Dai Lerong |
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| Institution: | College of Chemistry and Molecular Engineering,Peking University,Beijing 100871 |
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| Abstract: | Cubic mesoporous titaniumcontaining silica(TiMCM48) can be synthesized by using mixed surfactants CTABC nHN 2(n=8,10,12,14) as templates in basic medium.Characterization results obtained from the determination of XRD,TEM and N 2adsorption show that the products possess highquality TiMCM48.The effect of the chain length of the alkylamine and the ratio of titanium to silicium on the structure of the cubic mesophases were investigated.It was revealed that the mesophase transition from cubic to lamellar structure occurred with increasing alkylamine chain length and Ti/Si ratio. |
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| Keywords: | Mixed surfactant templating Cubic structure Mesoporous titanium-containing silica |
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