This study presents a sol-gel method for preparation of bilayer coatings based on silica materials and iron (III) phthalocyanine - sensitized TiO₂ nanoparticles (TiO₂–Fe(III)Pc), deposited on glass surfaces. Silica materials were synthetized using organosilane precursors (dimethoxydimethylsilane (DMDMES), octyltriethoxysilane (OTES), and/or hexadecyltrimethoxysilane (HDTMES)), with a two-step acid reaction. The materials properties have been investigated using FT-IR and UV-Vis spectroscopy, AFM analysis, and water contact angle. The photo-degradation experiments of thin films were developed using methylene blue as a standard contaminant. FT-IR spectra confirmed the successful grafting of silica materials onto the surface of TiO₂–Fe(III)Pc nanoparticles. AFM analysis indicated that the thin films present a different nanostructure depending on the silica matrix and the existence of TiO₂–Fe(III)Pc nanoparticles. Contact angle measurements showed that sol-gel coatings exhibit hydrophobic behavior (>99 ± 2°), before and after photo-degradation test. The presence of nanoparticles plays an important role in the development of coatings with photo-catalytic property.

这项研究提出了一种溶胶-凝胶法，该方法用于制备基于二氧化硅材料和铁（III）酞菁铁敏化的TiO ₂纳米颗粒（TiO ₂ -Fe（III）Pc）的双层涂层，该方法沉积在玻璃表面上。使用有机硅烷前体（二甲氧基二甲基硅烷（DMDMES），辛基三乙氧基硅烷（OTES）和/或十六烷基三甲氧基硅烷（HDTMES））合成二氧化硅材料，并进行两步酸反应。使用FT-IR和UV-Vis光谱，AFM分析和水接触角对材料的性能进行了研究。以亚甲基蓝为标准污染物，进行了薄膜的光降解实验。FT-IR光谱证实了二氧化硅材料已成功接枝到TiO表面₂ –Fe（III）Pc纳米粒子。原子力显微镜分析表明，薄膜呈现出不同的纳米结构，这取决于二氧化硅基质和TiO ₂ -Fe（III）Pc纳米颗粒的存在。接触角测量表明，溶胶-凝胶涂料在光降解试验前后均表现出疏水性（> 99±2°）。纳米粒子的存在在具有光催化性能的涂料的开发中起着重要作用。