本文以天然矿物微斜长石为硅、铝源,以十六烷基三甲基溴化铵(CTAB)为模板剂,在碱性条件下水热合成出了铝硅酸盐介孔分子筛.研究了合成母液中SiO2∶ Al2O3物质的量比对所合成分子筛孔径的影响.通过质量吸水率、X射线粉晶衍射(XRD)、N2吸附和小角散射(SAXS)等测试手段对样品进行表征,得到如下结论:随母液中SiO2∶ Al2O3物质的量比(40～20)的降低, 即随着铝含量的增多,分子筛的质量吸水率(48.12～35.34%)、晶胞参数(4.65～4.17 nm)及孔径尺寸(2.73～2.18 nm)相应减小.
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