Preparation and Characterization of Silica-Alumina-Pillared Montmorillonites with High Surface Area
The silica-alumina-pillared montmorillonite materials (SiAl-MMT) were developed by a novel method,which combined several techniques such as ion-exchange,intercalation and surfactant modification.The morphology,composite structure and pore properties of such composite materials,were investigated by X-ray powder diffraction (XRD),Scanning Electronic Microscopy (SEM),Fourier-transform infra-red (FTIR) spectra,as well as Nitrogen Adsorption-Desorption Isotherms.The layer structure of the prepared materials retained and their pore structures were found to be slit-shaped pores located between plate-like particles.The prepared SiAl-MMT materials had a BJH pore volume of 0.63cm3 g-1,a remarkably high BET specific surface area beyond 1000 m2 g-1,and a narrow pore size distribution in the mesoporous region 3.5-4 nm after thermal treatment at 600 ℃.
Silica-alumina-pillared montmorillonites SiAl-MMT BET surface area X-ray diffraction
Xu Hongyan Bao Xiaojun Wang Tinghai Wang Yonggang
College of Resources and Environment,Hebei Polytechnic University,Tangshan 063009,China The Key Laboratory of Catalysis,China National Petroleum Corporation,Department of Chemical Engineer School of Chemical and Environmental Engineering,China University of Mining and Technology,Beijing 1
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1712-1715
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）