MSU-x介孔分子筛的改性研究  

Modification of MSU-x molecular mesoporous sieve

作　　者：姚丽珠[1,2] 田彦文[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《分子科学学报》2009年第6期385-389,共5页Journal of Molecular Science

基　　金：国家自然基金资助项目(50174016)

摘　　要：以脂肪醇聚氧乙烯醚为模板剂,正硅酸乙酯为Si源,分别以偏钨酸铵,硫酸铝作为W源和Al源进行改性,合成出W-MSU-x以及Al-MSU-x介孔分子筛.并且通过X射线扫描、N2吸附-脱附、原位红外表征考察W和Al的加入对介孔分子筛的影响.结果得到,W的加入提高了分子筛的有序度,Al的加入使介孔分子筛的孔径减小,比表面积增大.This study emphasize on the modification of MSU-x molecular mesoporous sieve with tungstate ammonia and sulfate aluminum as W,Al source.In netural conditions,fatty alcohol polyoxyethylene ether is used as template,tetraethyl orthosilicate as silica source,the modified molecular mesoporous sieves W-MSU-x,Al-MSU-x were prepared.The characterizations of molecular mesoporous sieves modified by,W,Al are investigated by the technics of X Ray Diffraction,N2 adsorption-desorption isotherms,FT-IR spectra.The results show that,W,Al do not destroy the framework of molecular mesoporous sieves,rather,the order degree is improved by W loaded; Al atom change the pore performance of molecular mesoporous sieves,pore diameter is minimized,surface area is increased as well.

关 键 词：脂肪醇聚氧乙烯醚 改性 W-MSU-x介孔分子筛 Al-MSU-x介孔分子筛 

分 类 号：O641[理学—物理化学]