Superhydrophobic Surface from Sol Gel Synthesis of Thin Sol Gel Fluorinated Silica Coating
DOI:
10.56566/jmsr.v2i1.495Downloads
Abstract
A thin fluorinated silica coating was synthesized via a sol–gel route using silica nanoparticles as surface roughness agents functionalized with long-chain fluoroalkylsilane. The coatings were characterized for surface wettability, optical transmittance, infrared spectra, and morphology. All samples exhibited excellent optical transparency as verified by UV–visible spectroscopy. The fluorinated silica coating demonstrated markedly enhanced water repellency compared to TEOS and TEOS–FAS systems, confirming the critical role of fluorinated silica in improving hydrophobicity. These findings indicate its strong potential for application as a transparent hydrophobic coating in optoelectronic devices, lenses, and window materials
References
Aspinall, S. R., & Khutoryanskiy, V. V. (2023). Surface modification of silica particles with adhesive functional groups or their coating with chitosan to improve the retention of toothpastes in the mouth. Langmuir, 39(4), 1677–1685. https://doi.org/10.1021/acs.langmuir.2c03269
Bagwe, R. P., Hilliard, L. R., & Tan, W. (2006). Surface modification of silica nanoparticles to reduce aggregation and nonspecific binding. Langmuir, 22(9), 4357–4362. https://doi.org/10.1021/la052797j
Bhushan, B., Koch, K., & Jung, Y. C. (2009). Fabrication and characterization of the hierarchical structure for superhydrophobicity and self-cleaning. Ultramicroscopy, 109, 1029–1034. https://doi.org/10.1016/j.ultramic.2009.03.030
Cassie, A. B. D., & Baxter, S. (1994). Wettability of porous surfaces. Transactions of Faraday Society, 40, 0546–0550. https://doi.org/10.1039/TF9444000546
Chen, J., Wang, F., Jia, X., Xiao, X., Chen, S., & Wang, X. (2025). Transparent and Robust Superhydrophobic Coatings for High-Fidelity Signal Transmission in Atmospheric Light Detection and Ranging Windows. Langmuir, 41, 40. https://doi.org/10.1021/acs.langmuir.5c03890
Feng, L., Li, S. H., Li, Y. S., Li, H. J., Zhang, L. J., Zhai, J., Song, Y. L., Liu, B. Q., Jiang, L., & Zhu, D. B. (2002). Superhydrophobic surfaces: from natural to artificial. Advanced Materials, 14, 1857–1860. https://doi.org/10.1002/adma.200290020
Gao, L., & He, J. (2013). Surface hydrophobic co-modification of hollow silica nanoparticles toward large-area transparent superhydrophobic coatings. Journal of Colloid And Interface Science, 396, 152–159. https://doi.org/10.1016/j.jcis.2013.01.014
Guglielmi, M. (2020). From past research experiences looking to the future of sol–gel. Journal of Sol-Gel Science and Technology, 95(3), 494–502. https://doi.org/10.1007/s10971-020-05267-2
Hagemans, F., Pujala, R. K., Hotie, D. S., Thies-Weesie, D. M., Winter, D. M., Meeldijk, J. D., & Imhof, A. (2018). Shaping silica rods by tuning hydrolysis and condensation of silica precursors. Chemistry of Materials, 31(2), 521–531. https://doi.org/10.1021/acs.chemmater.8b04607
Hao, T., Wang, Y., Liu, Z., Li, J., Shan, L., Wang, W., & Tang, J. (2021). Emerging applications of silica nanoparticles as multifunctional modifiers for high performance polyester composites. Nanomaterials, 11(11), 2810. https://doi.org/10.3390/nano11112810
Ji, H., Chen, G., Hu, J., Wang, M., Min, C., & Zhao, Y. (2013). Biomimetic superhydrophobic surfaces. Journal of Dispersion Science and Technology, 34(1), 1–21. https://doi.org/10.1080/01932691.2011.646625
Jiříčková, A., Jankovský, O., Sofer, Z., & Sedmidubský, D. (2022). Synthesis and applications of graphene oxide. Materials, 15(3), 920. https://doi.org/10.3390/ma15030920
Kandeloos, A. J., Eder, T., Benseghir, Y., Reithofer, M. R., Luitz, M., & Chin, J. M. (2025). Durable Electro-Photothermal Superhydrophobic Coatings Based on Liquid-Like Functionalization of Nanoparticles: Improved Water Repellency and Droplet Rebound. Advanced Materials Interfaces, e00706, 1–14. https://doi.org/10.1002/admi.202500706
Kassaun, B. B., & Fatehi, P. (2025). Superhydrophobic lignin reinforced rubber film as oil water separator. Sustainable Materials and Technologies, e01444. https://doi.org/10.1016/j.susmat.2025.e01444
Keskin, E., Tarkuc, S., Yeşilçubuk, S. A., Kızılcan, N., & Köken, N. (2025). Impact of fluoroalkoxysilane incorporation on the mechanical properties of sol-gel coatings on stainless steel and glass surfaces. Journal of Sol-Gel Science and Technology, 114(3), 1062–1081. https://doi.org/10.1007/s10971-025-06766-w
Li, L., Wei, J., Zhang, J., Li, B., Yang, Y., & Zhang, J. (2023). Challenges and strategies for commercialization and widespread practical applications of superhydrophobic surfaces. Science Advances, 9(42), 1554. https://doi.org/10.1126/sciadv.adj1554
Liu, S., Liu, X., Latthe, S. S., Gao, L., An, S., & Yoon, S. S. (2015). Self-cleaning transparent superhydrophobic coatings through simple sol – gel processing of fluoroalkylsilane. Applied Surface Science, 351, 897–903. https://doi.org/10.1016/j.apsusc.2015.06.016
Neinhuis, C. W. B. (1997). Characterization and distribution of water-repellent, self-cleaning plant surfaces. Annals of Botany, 79, 667–677. https://doi.org/10.1006/anbo.1997.0400
Nishina, Y. (2024). Mass production of graphene oxide beyond the laboratory: bridging the gap between academic research and industry. ACS Nano, 18(49), 33264–33275. https://doi.org/10.1021/acsnano.4c13297
Nosonovsky, M., & Bhushan, B. (2008). Patterned non-adhesive surfaces: superhydrophobicity and wetting regime transitions. Langmuir, 24(4), 1525–1533. https://doi.org/10.1021/la702239w
Parvate, S., Dixit, P., & Chattopadhyay, S. (2020). Superhydrophobic surfaces: insights from theory and experiment. The Journal of Physical Chemistry B, 124(8), 1323–1360. https://doi.org/10.1021/acs.jpcb.9b08567
Theodorakopoulos, G. V, Arfanis, M. K., Mouti, N., Kaidatzis, A., Mitterer, C., Giannakopoulos, K., & Falaras, P. (2025). Superhydrophilic Titania Coatings on Glass Substrates via the Hydrosol Approach. Surfaces, 8(1). https://doi.org/10.3390/surfaces8010005
Vidal, K., Gómez, E., Goitandia, A. M., Angulo-Ibáñez, A., & Aranzabe, E. (2019). The synthesis of a superhydrophobic and thermal stable silica coating via sol-gel process. Coatings, 9(10), 627. https://doi.org/10.3390/coatings9100627
Wang, S., Zhang, W., Yu, X., Liang, C., & Zhang, Y. (2017). Sprayable superhydrophobic nano-chains coating with continuous self-jumping of dew and melting frost. Scientific Reports, 7(1), 40300. https://doi.org/10.1038/srep40300
Wenzel, R. N. (1936). Resistance of solid surfaces to wetting by water. Industrial Engineering and Chemistry, 28(8), 988–994. https://doi.org/10.1021/ie50320a024
Yilbas, B. S., Ibrahim, A., Ali, H., Khaled, M., & Laoui, T. (2018). Hydrophobic and optical characteristics of graphene and graphene oxide films transferred onto functionalized silica particles deposited glass surface. Applied Surface Science, 442, 213–223. https://doi.org/10.1016/j.apsusc.2018.02.176
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