以三嵌段共聚物(P123)作为模板剂,正硅酸乙酯(TEOS)为硅源,利用溶胶凝胶法,在微波条件下快速地将Ce金属离子直接掺杂到sBA-15介孔分子筛骨架中.通过X射线粉末衍射(XRD)、傅立叶变换红外(FT-IR)、紫外可见漫反射(UV-Vis)、透射电镜(TEM)和N2的等温吸附-脱附法等手段对合成的样品进行表征.结果表明:稀土Ce金属离子以Ce3+,Ce4+两种价态存在于SBA-15介孔分子筛中.合成的Ce/SBA-15分子筛具有规则六方孔道结构,较高的比表面积和孔容(分别为714.85 m2·g-1和0.67 cm3·g-1),其孔半径主要集中在1.8 nm.＃
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