介孔材料MCM-41的改性研究  

The modified research on mesoporous material MCM-41

作　　者：祝翠梅[1] 魏长平[1] 许洁[1] 

机构地区：[1]长春理工大学材料科学与工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2007年第4期7-9,共3页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省教育厅科技计划项目(No.2006237)

摘　　要：以十六烷基三甲基溴化铵为模板剂,正硅酸乙酯为硅源,室温下制备了六方有序介孔材料MCM-41,用1,3,5-三甲苯(TMB)、-氨丙基三乙氧基硅烷(APTES)对其进行化学修饰,得到改性MCM-41。采用XRD、红外光谱、氮气吸附-脱附等方法对样品进行了结构表征,结果表明,改性MCM-41保留了MCM-41的六方有序结构,扩孔后得到较大孔径的介孔MCM-41,经硅烷化修饰后减少了表面硅羟基,增大了MCM-41的表面极性,有利于介孔材料MCM-41的组装。Using Cetyltrimethyl ammonium bromide（CTAB） as the template, tetraethyl orthosilicate（TEOS） as the source of silicon , the hexagonal ordered mesoporous materials MCM-41 was prepared at room temperature. The MCM-41 was chemical modified by TMB and APTES, and then the modified MCM-41 was acquired. The structure of the samples were characterized by X-ray Diffraction, Infrared spectroscopy and Nitrogen adsorption-desorption methods. The results indicated that the modified MCM-41 remains the hexagonal ordered mesoporous structure. The product gets a larger pore diameter than the pure MCM-41 when expanded by TMB, reduced the surface silanols by the silane modification, and increased the surface polarity of MCM-41, then it is advantageous for the assembly of the mesoporous material MCM-41.

关 键 词：介孔材料 MCM-41 1 3 5-三甲苯 Γ-氨丙基三乙氧基硅烷 改性 结构 

分 类 号：O621[理学—有机化学]