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Salt-induced synthesis of sheet-like SBA-15 under neutral conditions

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Abstract

In a neutral buffer system (Tris–HCl), the sheet-like mesoporous silica SBA-15 with regular hexagonal array was synthesized in the presence of the triblock copolymer P123 and the organic salt Na2EDTA. The small angle X-ray scattering, N2 adsorption–desorption, SEM, and TEM techniques were used to investigate the topology and morphology of the synthesized mesoporous silica, which shows a well-ordered hexagonal mesostructure and a sheet-like morphology. The mesopore channels in the synthesized material are perpendicular to the sheet plane. The strategy via the addition of the organic salt Na2EDTA provides an alternative to synthesize SBA-15 with a sheet-like morphology under mild conditions.

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Acknowledgments

The financial supports by the Natural Science Foundation of Zhejiang Province, China (R4080084 and Y4090473) and the Planned Science and Technology Project of Zhejiang Province, China (2009F70035) are gratefully acknowledged.

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Authors and Affiliations

  1. Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, 321004, Jinhua, People’s Republic of China

    Qiang Xiao, Yijun Zhong & Weidong Zhu

Authors
  1. Qiang Xiao
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  2. Yijun Zhong
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  3. Weidong Zhu
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Correspondence to Qiang Xiao or Weidong Zhu.

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Xiao, Q., Zhong, Y. & Zhu, W. Salt-induced synthesis of sheet-like SBA-15 under neutral conditions. J Porous Mater 18, 553–556 (2011). https://doi.org/10.1007/s10934-010-9408-y

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  • DOI: https://doi.org/10.1007/s10934-010-9408-y

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