在含氟体系中以正硅酸乙酯和十六烷基溴化铵作为硅源和模板剂,合成高质量的MCM-48。主要考察了各种影响合成MCM-48的因素,得到的产物分别用XRD,TEM和N2吸附-脱附技术进行表征。结果表明,合成高质量MCM-48的条件是温度为393 K,时间为24 h,CTAB/Si比为0.65;得到的MCM-48具有较大的比表面积(130 5 m2/g),孔径分布比较集中(2.416 nm)。 High-quality MCM-48 was synthesized using tetraethylorthosilicate and cetylammonium bromide as the silicon source and templating agent in the fluorine-containing system. Various factors influencing the synthesis of MCM-48 were investigated. The products were characterized by XRD, TEM and N2 adsorption-desorption. The results showed that the conditions for synthesizing high quality MCM-48 were as follows: the temperature was 393 K, the time was 24 h, the CTAB / Si ratio was 0.65; the obtained MCM-48 had larger specific surface area (130 5 m2 / g) Concentrated (2.416 nm).