Abstract
Here we present an economical ambient pressure drying method of preparing monolithic silica aerogels from methyltrimethoxysilane precursor while using sodium bicarbonate solution as the exchanging solvent. We prepared silica aerogels with a density and a specific surface area of 0.053 g·cm−3 and 423 m2·g−1, respectively. The average pore diameter of silica aerogels is 23 nm as the pore specific volume is 1.11 cm3·g−1. Further, the contact angle between water droplet and the surface of silica aerogels in specific condition can be as high as 166°, which indicates a super-hydrophobic surface of aerogels.
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References
Hüsing N, Schubert U. Aerogels—airy materials: chemistry, structure, and properties. Angewandte Chemie International Edition, 1998, 37(1–2): 22–45
Wang C, Okubayashi S. 3D aerogel of cellulose triacetate with supercritical antisolvent process for drug delivery. Journal of Supercritical Fluids, 2019, 148: 33–41
Wang C, Liang W, Yang Y, Liu F, Sun H, Zhu Z, Li A. Biomass carbon aerogels based shape-stable phase change composites with high light-to-thermal efficiency for energy storage. Renewable Energy, 2020, 153: 182–192
Tsou P. Silica aerogel captures cosmic dust intact. Journal of Non-Crystalline Solids, 1995, 186: 415–427
Smirnova I, Gurikov P. Aerogels in chemical engineering: strategies toward tailor-made aerogels. Annual Review of Chemical and Biomolecular Engineering, 2017, 8(1): 307–334
da Silva F T, de Oliveira J P, Fonseca L M, Bruni G P, da Rosa Zavareze E, Dias A R G. Physically cross-linked aerogels based on germinated and non-germinated wheat starch and PEO for application as water absorbers for food packaging. International Journal of Biological Macromolecules, 2020, 155: 6–13
Ul Haq E, Zaidi S F A, Zubair M, Abdul Karim M R, Padmanabhan S K, Licciulli A. Hydrophobic silica aerogel glass-fibre composite with higher strength and thermal insulation based on methyltrimethoxysilane (MTMS) precursor. Energy and Building, 2017, 151: 494–500
Anderson A M, Carroll M K, Green E C, Melville J T, Bono M S. Hydrophobic silica aerogels prepared via rapid supercritical extraction. Journal of Sol-Gel Science and Technology, 2010, 53 (2): 199–207
Aegerter M A, Leventis N, Koebel M M. Aerogels Handbook. New York: Springer, 2011, 79, 105
Gurav J L, Jung I K, Park H H, Kang E S, Nadargi D Y. Silica aerogel: synthesis and applications. Journal of Nanomaterials, 2010, 2010: 409310
Rao A P, Rao A V, Pajonk G M. Hydrophobic and physical properties of the two step processed ambient pressure dried silica aerogels with various exchanging solvents. Journal of Sol-Gel Science and Technology, 2005, 36(3): 285–292
Han X, Hassan K T, Harvey A, Kulijer D, Oila A, Hunt M R C, Šiller L. Bioinspired synthesis of monolithic and layered aerogels. Advanced Materials, 2018, 30(23): 1706294
Bhagat S D, Oh C S, Kim Y H, Ahn Y S, Yeo J G. Methyltrimethoxysilane based monolithic silica aerogels via ambient pressure drying. Microporous and Mesoporous Materials, 2007, 100(1): 350–355
Rao A V, Bhagat S D, Hirashima H, Pajonk G M. Synthesis of flexible silica aerogels using methyltrimethoxysilane (MTMS) precursor. Journal of Colloid and Interface Science, 2006, 300(1): 279–285
Luo Y, Li Z, Zhang W, Yan H, Wang Y, Li M, Liu Q. Rapid synthesis and characterization of ambient pressure dried monolithic silica aerogels in ethanol/water co-solvent system. Journal of Non-Crystalline Solids, 2019, 503–504: 214–223
Cheng X, Li C, Shi X, Li Z, Gong L, Zhang H. Rapid synthesis of ambient pressure dried monolithic silica aerogels using water as the only solvent. Materials Letters, 2017, 204: 157–160
Lana S L B, Seddon A B. X-ray diffraction studies of sol-gel derived ORMOSILs based on combinations of tetramethoxysilane and trimethoxysilane. Journal of Sol-Gel Science and Technology, 1998, 13(1): 461–466
Widati A A, Nuryono N, Kartini I. Water-repellent glass coated with SiO2-TiO2-methyltrimethoxysilane through sol-gel coating. AIMS Materials Science, 2019, 6(1): 10–24
Moriones P, Echeverria J C, Parra J B, Garrido J J. Phenyl siloxane hybrid xerogels: structure and porous texture. Adsorption, 2020, 26 (2): 177–188
Jeong A Y, Koo S M, Kim D P. Characterization of hydrophobic SiO2 powders prepared by surface modification on wet gel. Journal of Sol-Gel Science and Technology, 2000, 19(1): 483–487
Hering N, Schreiber K, Riedel R, Lichtenberger O, Woltersdorf J. Synthesis of polymeric precursors for the formation of nanocrystalline Ti-C-N/amorphous Si-C-N composites. Applied Organometallic Chemistry, 2001, 15(10): 879–886
Łączka M, Cholewa-Kowalska K, Kogut M. Organic-inorganic hybrid glasses of selective optical transmission. Journal of Non-Crystalline Solids, 2001, 287(1): 10–14
Law K Y. Definitions for hydrophilicity, hydrophobicity, and superhydrophobicity: getting the basics right. Journal of Physical Chemistry Letters, 2014, 5(4): 686–688
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Liu, Y., Han, X., Kuerbanjiang, B. et al. Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient pressure. Front. Chem. Sci. Eng. 15, 954–959 (2021). https://doi.org/10.1007/s11705-020-2028-4
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DOI: https://doi.org/10.1007/s11705-020-2028-4