硅酸盐学报2006，Vol.34Issue(4)：403-407,5.
用脱镁海泡石制备介孔分子筛MCM-41
MESOPOROUS MOLECULAR SIEVES MCM - 41 PREPARED FROM POST-Mg-EXTRACTION SEPIOLITE
摘要
Abstract
Mesoporous molecular sieves MCM - 41 were synthesized by the hydrothermal reconstruction method with post-Mg - extraction sepiolite as the silica source. The effects of crystallization time, pH value and crystallization temperature on the formation of MCM - 41 were investigated. The structure, pore size distribution and specific surface area of MCM - 41 were characterized by X-ray diffraction, Brumauer - Emmett - Teller method and infrared analysis. The results show that the hexagonal MCM - 41 is formed in alkaline solution ofpH=12 when crystallization is carried out at 100 ℃ for 24 h. The specific surface area, pore size and pore volumes of MCM- 41 from post-Mg- extraction sepiolite are 860 m2/g, 2.9 nm and 0.77 cm3/g, respectively. The IR results illustrate that the complex of ≡SiO -CTA+ was formed during synthesis of MCM - 41 from post-Mg - extraction sepiolite.关键词
海泡石/介孔分子筛/水热Key words
sepiolite/mesoporous molecular sieves/hydrothermal分类
矿业与冶金引用本文复制引用
金胜明,肖飞,杨华明,邱冠周,杨敏..用脱镁海泡石制备介孔分子筛MCM-41[J].硅酸盐学报,2006,34(4):403-407,5.基金项目
国家自然科学基金(50304014)资助项目.The support of this research by the National Natural Science Foundation of China(No. 50304014) is gratefully acknowledged. （50304014）
