混合表面活性剂模板法合成立方相介孔含钛氧化硅  

Synthesis of Cubic Mesoporous Titanium-containing Silica by Mixed Surfactant Templating

作　　者：王彤文 陈旌蕾 戴乐蓉[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871

出　　处：《物理化学学报》2000年第5期385-388,共4页Acta Physico-Chimica Sinica

基　　金：国家攀登计划!(97021107);国家自然科学基金重大项目!(299925904)资助

摘　　要：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.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.

关 键 词：混合表面活性剂 含钛氧化硅 分子筛 合成 模板法 

分 类 号：TQ424[化学工程]