高岭土/二甲基亚砜插层物合成ZSM-5沸石的表征  

Characterization of ZSM-5 Zeolite Synthesized From Kaolin/Dimethylsulfoxide Intercalation Composite

作　　者：张培青 刘思成 何理均 郑淑琴[1] 任劭[1] ZHANG Peiqing;LIU Sicheng;HE Lijun;ZHENG Shuqin;REN Shao(Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414000, China)

机构地区：[1]湖南理工学院化学化工学院

出　　处：《石油学报（石油加工）》2019年第3期473-478,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(21371055);湖南省高校创新平台开放基金项目(15K049);湖南省研究生创新项目(CX2017B766)资助

摘　　要：引入高岭土/二甲基亚砜插层物(KDC)在水热合成体系下制备ZSM-5沸石复合材料。考察了KDC不同加入量对合成ZSM-5沸石分子筛的影响。采用粉末X射线衍射法、红外光谱(FT-IR)、热重-差热(TG-DTA)、N2静态吸附法、电子扫描电镜和透射电镜对合成的ZSM-5分子筛进行分析表征。结果表明,在合成体系中加入KDC合成的ZSM-5沸石分子筛物相单一,当KDC的加入质量分数为6%时,其相对结晶度达到55%,热稳定性较好,粒径约为5μm,BET比表面积和孔径分别达到了199m2/g和6.6nm,具有介孔结构。In this paper, the ZSM-5 zeolite composites were synthesized from Kaolin/dimethylsulfoxide intercalation composite (KDC) by an in-situ hydrothermal crystallization method. The effects of different contents of KDC on the synthesis behavior of the ZSM-5 zeolite were investigated. These synthesized samples were characterized by X-ray diffraction, FT-IR, TG-DTA, N 2 adsorption-desorption, SEM and TEM, respectively. Results show that highly crystalline ZSM-5 zeolite can be synthesized by using KDC as raw material. When the mass fraction of KDC is 6%, the highest crystallinity and thermal stability of ZSM-5 zeolite are obtained, with particle diameter of 5 μm, BET specific surface area of 199 m 2/g and mesopore size of 6.6 nm, respectively.

关 键 词：二甲基亚砜(DMSO) 高岭土 插层复合物 ZSM-5沸石 

分 类 号：TQ426.6[化学工程]