Enhancing glass surface hydrophobicity: the role of Perfluorooctyltriethoxysilane in advanced surface modification

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Sol-Gel Science and Technology Pub Date : 2024-10-19 DOI:10.1007/s10971-024-06593-5

Hossein Khojasteh, Mohammad-Peyman Mazhari, Kamran Heydaryan, Peyman Aspoukeh, Shahab Ahmadiazar, Samir Mustafa Hamad, Dilshad Shaikhah

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Abstract

This study presents a novel approach to fabricate self-cleaning, superhydrophobic coatings on glass surfaces and photovoltaic cells. Using a cost-effective spray-coating technique, superhydrophobic glass surfaces were developed incorporating modified SiO₂ nanoparticles (NPs), synthesized via a simple sol–gel method. Silylating agents, Poly(dimethylsiloxane) (PDMS) and Perfluorooctyltriethoxysilane (PFOS), were used for the modification, resulting in enhanced surface roughness and hydrophobicity. The study extensively characterizes the analytical techniques such as Fourier transform infrared spectroscopy (FT-IR), atomic force microscopy (AFM), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and contact angle measurements. Modified NPs with PFOS showed a significant improvement in hydrophobic properties, with water contact angles of 144.73° and sliding angles of 5°. The stability of these surfaces under various pH conditions was also evaluated. This research contributes valuable insights into the development of self-cleaning coatings for glass and photovoltaic cells, demonstrating the potential of superhydrophobic surfaces in practical applications.

Graphical Abstract

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增强玻璃表面的疏水性：全氟辛基三乙氧基硅烷在高级表面改性中的作用

本研究提出了一种在玻璃表面和光伏电池上制造自清洁超疏水涂层的新方法。该研究采用一种经济高效的喷涂技术，在超疏水玻璃表面加入了通过简单的溶胶-凝胶法合成的改性二氧化硅纳米颗粒（NPs）。硅烷化剂聚（二甲基硅氧烷）（PDMS）和全氟辛基三乙氧基硅烷（PFOS）被用于改性，从而提高了表面粗糙度和疏水性。研究广泛采用了傅立叶变换红外光谱（FT-IR）、原子力显微镜（AFM）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）和接触角测量等分析技术。用全氟辛烷磺酸修饰的 NPs 在疏水性能方面有显著改善，水接触角为 144.73°，滑动角为 5°。此外，还评估了这些表面在不同 pH 值条件下的稳定性。这项研究为玻璃和光伏电池自清洁涂层的开发提供了宝贵的见解，展示了超疏水表面在实际应用中的潜力。

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.