高等学校化学学报

高等学校化学学报

• 研究快报 • 上一篇    下一篇

以离子液体为结构导向剂合成有序超微孔二氧化硅

李尚禹2, 王润伟2, 万利丰2, 屈学俭2, 张涛2, 张宗弢1, 裘式纶1,2   

    1. 吉林大学先进技术研究院,
    2. 化学学院, 长春 130012
  • 收稿日期:2007-10-18 修回日期:1900-01-01 出版日期:2008-03-10 发布日期:2008-03-10
  • 通讯作者: 张宗弢

Synthesis of Ordered Sub-mesostructured Silica via Ionic Liquid as Structure-Directing Agents

LI Shang-Yu2, WANG Run-Wei2, WAN Li-Feng2, QU Xue-Jian2, ZHANG Tao2, ZHANG Zong-Tao1*, QIU Shi-Lun1,2   

    1. Academy for Advanced Technology,
    2. College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2007-10-18 Revised:1900-01-01 Online:2008-03-10 Published:2008-03-10
  • Contact: ZHANG Zong-Tao

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被引次数

15

摘要： 在酸性条件下, 以1-十六烷基-3-甲基溴化咪唑为表面活性剂合成了具有有序超微孔结构的二氧化硅材料, 所合成的材料具有较高的比表面积和二维六方有序的孔结构, 样品的孔径尺寸为1.8 nm.

关键词: 孔材料, 离子液体, 超微孔二氧化硅, 溶胶凝胶制备, 微结构

Abstract: An ordered hexagonal pore sub-mesostructured silica was synthesized via ionic liquid 1-hexadecane-3-methylimidazolium bromide(C16MIB) as structure-directing agents in acidic media. By combining the results of transmision electron microscopy, X-ray diffraction and surface area measurements, an elementary structure and characterization of the samples was obtained. This material performs two-dimensional hexagonal framework structure being analogous to MCM-41 and SBA-3 silicas in long range order, but the position of reflection peaks of X-ray diffraction shifts to a wide angle compared with those of MCM-41 and SBA-3. The sub-mesostructured silica has high BET specific surface area of 1360 m2/g, as well as small pore size of 1.8 nm.

Key words: Porous material, Ionic liquid, Sub-mesostructure silica, Sol-gel preparation, Microstructure

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