UV / visible sol gel W–TiO2 photocatalytic coatings for interior building surfaces

This article describes the synthesis of tungsten doped (W–TiO2) nanoparticles and their incorporation into a coating to improve air quality inside buildings. W–TiO2 was prepared using sol-gel route incorporating 1%, 2.5% 3% in TiO2. Coatings containing were produced water/alcohol liquid phase polyurethane binder applied surface medium density fibreboard (MDF). Photocatalytic activity unbound studied methylene blue degradation evaluate liquid/solid interface reactions NOx study gas/solid interfacial reactions. The coatings onto MDF evaluated Ink Intelligent indicator dyes. In tests photocatalytic under visible light all concentrations exhibited higher compared commercially available Degussa P25. paper has demonstrated for first time that can be effectively exhibit light.