Preparation and characterization of photocatalytic TiO2/glymo nanocomposite films

The reflux method was utilized for the synthesis of 5% Sn-doped TiO2 nanopowder. Surfaces of the TiO2 particles were modified with 3-glycidoxypropyltrimethoxysilane (glymo) and glass surfaces were coated with this solution by a spin-coating process. Molar ratios of TiO2:glymo were 0.25, 0.5, 2.5, and 7.5 in the films. Nanocomposite films were cured at 130 ◦ C. Adhesions of the obtained films were classified as 5B and pencil hardness increased with the increase in the ratio of the TiO2 in the films. Film thickness decreased from 5 µm to 0.3 µm when TiO2:glymo was increased from 0.25 to 7.5.