高等学校化学学报

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水-乙醚二元溶剂体系中制备放射虫状介孔氧化硅

赵翔, 林浩祥, 崔凯, 姚有为, 蔡强, 冯庆玲, 李恒德   

  1. 清华大学材料科学与工程系, 北京 100084
  • 收稿日期:2006-03-24 修回日期:1900-01-01 出版日期:2007-03-10 发布日期:2007-03-10
  • 通讯作者: 蔡强

Preparation of Radiolarian-like Mesoporous Silica from Water-diethyl Ether Binary Solvent System

ZHAO Xiang, LIN Hao-Xiang, CUI Kai, YAO You-Wei, CAI Qiang, FENG Qing-Ling, LI Heng-De   

  1. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2006-03-24 Revised:1900-01-01 Online:2007-03-10 Published:2007-03-10
  • Contact: CAI Qiang

摘要: 在水-乙醚双溶剂体系中合成了一种新型的放射虫状介孔氧化硅微球. 通过SEM、TEM、XRD以及孔分布测试技术对其进行了表征. 分析结果表明, 这种氧化硅产物反映了在不稳定的水-油界面合成的形貌特征, 具有多级孔结构和空的内腔以及两种类型径向取向的介孔结构外壳.

关键词: 介孔氧化硅, 放射虫状, 表面活性剂, 孔结构

Abstract: An interesting radiolarian-like silica spherulite was prepared from a water-diethyl ether binary solvent system, which is characterized by SEM, TEM, XRD, and adsorption experiments. The results indicate that the silica have a particular morphology and hierarchical structure, i.e., hollow interior and a crust wherein two types of mesopores with radiate orientation are located. This silica product embodies a novel morphosynthesis involving unstable water-oil interface.

Key words: Mesoporous silica, Radiolarian-like shape, Surfactant, Pore structure

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