高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (5): 675.

• 论文 • 上一篇    下一篇

MCM-48介孔分子筛的合成研究

蔡强1, 张慧波2, 林文勇1, 庞文琴1   

  1. 1. 吉林大学无机合成与材料制备化学开放实验室, 长春 130023;
    2. 抚顺大学化工系, 抚顺 113001
  • 出版日期:1999-05-24 发布日期:1999-05-24
  • 通讯作者: 庞文琴
  • 作者简介:蔡 强,男,36岁,讲师.
  • 基金资助:

    国家自然科学基金(批准号:29571011);教育部博士点基金;吉林大学无机合成与材料制备化学开放实验室资助

The Synthesis of Mesoporous Molecular Sieve MCM-48

CAI Qiang1, ZHANG Hui-Bo2, LIN Wen-Yong1, PANG Wen-Qin1   

  1. 1. Key Laboratory of Inorganic Synthesis Preparative Chemistry, Jilin University, Changchun, 130023;
    2. Department of Chemical Engineering, Fushun University, Fushun, 113001
  • Online:1999-05-24 Published:1999-05-24

摘要: 利用水热法合成了MCM-48介孔分子筛,通过IR,TG-DTA,XRD,TEM,N2吸附等方法对产物进行了表征,并系统地研究了晶化温度、晶化时间、凝胶组成等对合成MCM-48介孔分子筛的影响.

关键词: MCM-48介孔分子筛, 水热合成, 表征

Abstract: Mesoporous molecular sieve MCM-48 was prepared hydrothermally with CTAB, NaOH, TEOS as source materials. Characterization results obtained from the determination of XRD, TEM, N2-adsorption, IRspectra and TG-DTAshow that the products possess similar structure properties as those reported in literatures. Various synthesis parameters, including crystallization time, crystallization temperature and starting gel composition, have been studied. It was found that the crystallization temperature of 373K was preferable, lower temperature leading to weak crystallinity, higher temperature leading to amorphous material. Crystallization time of 3d was found suitable for MCM-48 formation, shorter time resulting in a low crystallinity. The influence of composition features such as n(H2O)/n (SiO2) and n(CTAB)/n(SiO2) on the product was studied.

Key words: Mesoporous molecular sieve MCM-48, Hydrothermal synthesis, Characterization

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