Composite Coatings Self-cleaning TiO2- SiO2- Ag

In this study we have successfully deposited TiO2- SiO2- Ag thin films on glass substrates by the sol gel method. After being coated by a dip coating method, the film was transparent, smooth and had strong adhesion on the glass surface. Tetra-n-butyl ortho titanat(TBT), Tetra Ethyl Ortho Silicate(Teos) and Silver nitrate were used as precursors. TBT was dissolved in absolute ethanol with various Si content. The physical properties of as-prepared films were characterized by X-ray diffraction (XRD) and optical properties were investigated from its optical absorption measured by UV-VIS Spectrophotometer (UV-VIS). XRD and FESEM results disclose the existence of TiO2 and Ag nanoparticles in the as-prepared films. It can be observed that the improvement in optical absorption in both UV and FTIR can be efficiently accomplished by the incorporation of TiO2- SiO2- Ag thin films, and The self-cleaning properties, along with the formation of Ti-O-Si groups IN THE nano-composite thin films.The obtained results show that deposited TiO2- SiO2- Ag thin films has potential applications for self cleaning and anti-bacterial Glass.

کلیدواژه ها:

thin film ، sol-gel technique ، self-cleaning ، nanocomposites ، TiO2- SiO2- Ag