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Synthesis of rod-like mesoporous silica with hexagonal appearance using sodium silicate as precursor

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Abstract

Using sodium silicate as precursor, rod-like mesoporous silica with hexagonal appearance was synthesized by controlling the pH value of a mixed micelles solution of cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium chloride (CTAC) during hydrolysis of ethyl acetate. The resulting mesoporous silica was characterized by small angle X-ray diffraction, nitrogen gas adsorption-desorption measurement and scanning electron microscopy. Results showed that the regular rod-like shapes with hexagonal appearance were obtained at a 9:1 molar ratio of CTAB to CTAC, and that the amounts and lengths of the rod-like mesoporous silica particles decreased with decreasing CTAB to CTAC molar ratio. There existed a type IV adsorption isotherm and an H1 hysteresis loop in N2 gas adsorption-desorption curves.

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Acknowledgements

This research is supported by State Key Laboratory of New Ceramic and Fine Processes of Tsinghua University and Visiting Scholar Foundation of Key Lab in University.

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Authors and Affiliations

  1. Laboratory of Colloid and Interface Chemistry of State Education Ministry, Shandong University, 250100, Jinan, P. R. China

    Shuhua Han, Wanguo Hou, Wenxiu Dang & Jun Xu

  2. Department of Mechanical and Industrial Engineering, University of Toronto, Ontario, M5S 3G8, Canada

    Dongqing Li

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  1. Shuhua Han
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  2. Wanguo Hou
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  3. Wenxiu Dang
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  4. Jun Xu
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  5. Jifan Hu
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  6. Dongqing Li
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Correspondence to Wanguo Hou.

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Han, S., Hou, W., Dang, W. et al. Synthesis of rod-like mesoporous silica with hexagonal appearance using sodium silicate as precursor. Colloid Polym Sci 282, 761–765 (2004). https://doi.org/10.1007/s00396-003-1016-9

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  • DOI: https://doi.org/10.1007/s00396-003-1016-9

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