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化学学报
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化学学报 ›› 2003, Vol. 61 ›› Issue (1): 58-62. 上一篇    下一篇

研究论文

硅酸钠与有机硅氧烷前驱体合成有机官能化硅基介孔材料

喻宁亚;巩雁军;王树国;吴东;孙予罕;罗晴;刘午阳;邓风   

  1. 中国科学院山西煤炭化学研究所,太原(030001);中国科学院武汉物理与数学 研究所,武汉(430071)
  • 发布日期:2003-01-15

Direct Synthesis of Mesoporous Organosilica from Sodium Silicate and Organosiloxane

Yu Ningya;Gong Yanjun;Wang Shuguo;Wu Dong;Sun Yuhan;Luo Qing;Liu Wuyang;Deng Feng   

  1. Chinese Academy of Sciences State Key Laboratory of Coal Conversion, Shanxi Institute of Coal Chemistry,Taiyuan(030001);Chinese Academy of Sciences Wuhan Institute of Physics and Mathematics,Wuhan(430071)
  • Published:2003-01-15

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600

被引次数

6 | 5

采用有机硅氧烷（RTES）与硅酸钠（Na2SiO3)共水解缩聚合成有机官能化的 MSU型硅基介孔材料，当前驱体中RTES和硅酸钠的摩尔比为0.1:0.9时合成了R－ MSU（R＝甲基，氨基）分子筛，通过现代分析技术证明有机官能团均进入材料骨架 。选用CH3－MSU合成体系，考察了合成温度、前驱体与模板剂摩尔比及前驱体中有 机硅氧烷含量等反应参数对材料织构性能的影响，发现通过简单地调节反应参数， 能较好地控制材料的结构和表面特性。

关键词: 前驱物, 合成, 硅, 多孔材料, 材料, 有机化合物, 扫描电子显微镜, 透射电子显微术, Ｘ-射线衍射, 傅里叶变换

Using sodium silicate and organotrialkoxysilane as the silica source and nonionic polyethylene oxide C_(11-15)-H_(23-31)(CH_2CH_2O) _9 (AEO_9) as the structure-directing agent, MSU-type mesoporous organosilica materials that include methyl, 3-aminopropyl group were sythesized. The obtained materials were characterized by XRD. FT-IR, SEM, HRTEM, ~29Si CP MAS NMR, N_2-physisorption and bulk elemental analysis. The effects of synthetic temperature, organotrialkoxysilane content in the precursor and Si/surfactant molar composition in CH_3- MSU system were investigated carefully.

Key words: PRECURSOR, SYNTHESIS, SILICON, POROUS MATERIALS, MATERIAL, ORGANIC COMPOUNDS, SCANNING ELECTRON MICROSCOPES, TRANSMISSION ELECTRON MICROSCOPY, X-RAY DIFFRACTION, FOURIER TRANSFORM

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