提出了一种合成孔壁含有沸石结构单元的介孔结构材料的新方法一降解法,即利用不同硅铝比的β沸石和ZSM-5沸石为原料在碱溶液中处理得到降解液,然后以此降解液为硅铝源在表面活性剂P123的模板作用下组装了孔结构类型为SBA-15的介孔结构材料,分别简称为MSB(β沸石降解合成)和MSZ(ZSM-5沸石降解合成).产物的IR光谱、N2吸附、29Si MAS NMR图谱和对重芳烃的加氢脱烷基反应催化活性均说明降解法合成的介孔结构材料MSB和MSZ的孔壁中含有了沸石的结构单元.
【英文摘要】
Mesostructured materials MSB and MSZ with the pore walls respectively composed of the structure units of zeolite β and ZSM-5, were successfully synthesized by a new method in which the silica-alumina precursors obtained through the dissolution of zeolites, assemble around the surfactant micelle of triblock copolymer EO20PO70EO20. Subsequently, the products are characterized by XRD, IR, TEM, N2-sorption, EDS and 29Si MAS NMR techniques. In the IR spectra of MSB and MSZ, the appearance of absorbance peaks cha...
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