模板剂对原位水热合成等级孔ZSM-5分子筛的影响  

Effect of templating agent on in-situ hydrothermal synthesis hierarchical ZSM-5

作　　者：牛逢钰 赵基钢[1] 苏越 郭新宇 丛梅[1] NIU Feng-yu;ZHAO Ji-gang;SU Yue;GUO Xin-yu;CONG Mei(International Joint Research Center for Green Energy Chemical Engineering,School of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;Jiangsu Coal and Chemical Engineering Research and Design Institute,Suzhou 215313,China)

机构地区：[1]华东理工大学化工学院绿色能源化工国际联合研究中心,上海200237 [2]江苏煤化工程研究设计院有限公司,江苏苏州215313

出　　处：《应用化工》2021年第2期372-375,379,共5页Applied Chemical Industry

基　　金：国家重点研发计划(2017YFB0306601)。

摘　　要：以正丁胺为模板剂制备硅铝摩尔比为40的ZSM-5分子筛,分别使用不同的介孔模板剂合成了等级孔ZSM-5分子筛,并采用XRD、NH_(3)-TPD、BET等对合成的分子筛进行表征。结果表明,采用不同介孔模板剂均可合成等级孔ZSM-5分子筛,其中以CTAB及P123为介孔模板剂合成的等级孔分子筛,介孔结构明显且保留了完整的微孔结构,微孔比表面在200 m^(2)/g以上,介孔比表面均达到了100 m^(2)/g,且孔径分布较广。为等级孔分子筛的进一步研究提供了基础数据支持。ZSM-5 molecular sieve with silicon-aluminum molar ratio of 40 was prepared by using n-butylamine as a template agent.Hierarchical ZSM-5 molecular sieves were synthesized using different mesoporous template agents,and XRD,NH_(3)-TPD,BET were used to characterize the molecular sieve.The results showed that hierarchical ZSM-5 molecular sieves can be synthesized with different mesoporous template agents.Among them,hierarchical molecular sieves synthesized with CTAB and P123 as mesoporous template agents had obvious mesoporous structures and retained complete microporous structures.The microporous specific surface is above 200 m^(2)/g,the mesoporous specific surface all reaches 100 m^(2)/g,and the pore size distribution is widely distributed.The conclusion provided basic data support for the further research of hierarchical molecular sieve.

关 键 词：ZSM-5分子筛 等级孔结构 原位合成法 介孔模板剂 

分 类 号：TQ426.6[化学工程]