以低浓度的十六烷基三甲基溴化铵为结构导向剂, 在碱性条件下通过水热法合成了具有立方结构的含钇Y-MCM-48介孔分子筛材料. XRD测试表明当Y/Si<0.05时可以获得典型的长程有序介孔立方结构相, 随Y/Si比的增加, 晶胞参数的增大和红外吸收光谱(FTIR)的变化为Y进入介孔分子筛骨架中提供了有力证据. N2吸附-脱附实验给出这种立方介孔材料的BET表面积为1180 m2*g-1, BJH平均孔径为3.4 nm. 紫外-可见漫反射光谱(UV-vis)证明钇以一种六配位的形式存在. X射线光电子能谱(XPS)进一步证明钇以三价形式存在于立方介孔分子筛骨架中.
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