Ti离子在介孔MCM-41中涂敷合成条件研究

材料导报, 2005, 19(10): 139-142.

Ti离子在介孔MCM-41中涂敷合成条件研究

吴秀文 ^1, , 马鸿文 ^2, , 李志宏 ^3, , 吴忠华 ^4, , 杨静 ^5,

1.中国地质大学矿物材料国家专业实验室,北京,100083

2.中国地质大学矿物材料国家专业实验室,北京,100083

3.中国科学院高能物理研究所同步辐射室,北京,100039

4.中国科学院高能物理研究所同步辐射室,北京,100039

5.中国地质大学矿物材料国家专业实验室,北京,100083

基金项目: 教育部留学回国人员科研启动基金(2-2-03-07)

关键词：介孔分子筛 , MCM-41 , 涂敷合成 , SAXS

The Study of Ti Ions Post-synthesis in Mesoporous MCM-41

在空气环境中,以无水乙醇为中间介质,常温涂敷法合成了Ti-MCM-41介孔分子筛,实验研究了不同Ti/Si摩尔比和钛源等因素对Ti-MCM-41合成的影响.XRD研究表明,随Ti/Si摩尔比由0.01增加到0.10,衍射参数d100由3.98nm缩小为3.65 nm,100衍射峰强相对于MCM-41下降了33%～84%;以钛酸四丁酯和四氯化钛为钛源合成Ti-MCM-41时,100衍射峰强相对MCM-41分别下降了33%和59%;SAXS得到的Ti-MCM-41孔径与TEM照片的结果符合,好于N2吸附-脱附等温线方法得到的结果,SAXS、TEM、N2吸附-脱附等温线给出的孔径分别为2.00 nm、2.15 nm、3.60 nm.

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