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One-step eco-friendly fabrication of classically monolithic silica aerogels via water solvent system and ambient pressure drying

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Abstract

We developed an eco-friendly method to facilely prepare the good-formability methyltrimethoxysilane (MTMS)-based silica aerogels via water solvent system and ambient pressure drying in one-step. In the whole procedure, water was used not only as a reaction agent but also as a solvent, avoiding the expensive cost and environmental pollution caused by solvent exchange. The structural properties of MTMS-based silica aerogels were characterized by the scanning electron microscopy, transmission electron microscopy and Brunauer–Emmett–Teller methods. The results indicated that compared with other silica aerogels prepared by traditional water solvent methods, this MTMS-based silica aerogels had the classic nanostructure with the high specific surface area of 450 m2/g as well as hydrophobic property.

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Acknowledgements

This research was financially supported by Sichuan Science and Technology Program (Grant No. 2018RZ0127), the Project of State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology (No. 18zxhk16) and the Doctoral Research Fund of Southwest University of Science and Technology (Grant No. 16zx7142).

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Authors and Affiliations

  1. State Key Laboratory of Environment-friendly Energy Materials, School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, People’s Republic of China

    Lin Yan

  2. State Key Laboratory of Environment-friendly Energy Materials, School of Science, Southwest University of Science and Technology, Mianyang, 621010, People’s Republic of China

    Lin Yan, Hongbo Ren, Jiayi Zhu & Yutie Bi

  3. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, People’s Republic of China

    Lin Zhang

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  1. Lin Yan
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  2. Hongbo Ren
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  3. Jiayi Zhu
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  4. Yutie Bi
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  5. Lin Zhang
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Correspondence to Hongbo Ren or Lin Zhang.

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Yan, L., Ren, H., Zhu, J. et al. One-step eco-friendly fabrication of classically monolithic silica aerogels via water solvent system and ambient pressure drying. J Porous Mater 26, 785–791 (2019). https://doi.org/10.1007/s10934-018-0674-4

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  • DOI: https://doi.org/10.1007/s10934-018-0674-4

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