硅酸盐学报2012，Vol.40Issue(10)：1466-1472,7.
微–介孔结构Y/MCM-48复合分子筛的合成与稳定性
Synthesis and Stability of Composite Molecular Sieve with Micro-Mesoporous Strcture
摘要
Abstract
A composite molecular sieve of Y/MCM-48 was hydrothermally synthesized at different crystallization temperatures and crystallization time using ethyl orthosilicate as Si source and cetyl trimethyl ammonium bromide as a template agent with fluoride.The sample was characterized by X-ray diffraction,Fourier transform-infrared spectroscopy,N2 physical adsorption technique,scanning electron microscopy and transmission electron microscopy,respectively.The result shows the presence of mesoporous MCM-48 and microscope NaY in the composite obtained at 120 ℃ for 36h.The Y/MCM-48 composite has a specific surface area of 864 m2/g and the average pore size of 2.4 nm.The bi-porous structure in the composite molecular sieve still maintain even after thermal treatment at 800 ℃ for 4h or hydrothermally treatment at 100 ℃ for 48h.关键词
微–介孔结构/Y/MCM-48复合分子筛/氟化物/稳定性Key words
micro-mesoporous structure/Y/MCM-48 composite molecular sieve/fluoride/stability分类
通用工业技术引用本文复制引用
陶章峰,赵谦,马艳,贾佳,姜廷顺..微–介孔结构Y/MCM-48复合分子筛的合成与稳定性[J].硅酸盐学报,2012,40(10):1466-1472,7.基金项目
江苏省高校自然科学基金 （）
江苏大学高级人才基金（10JDG114）资助项目 （）
