Solar, Titanium Dioxide, Photocatalysis, Thin Film, Emerging Pollutants, SODIS, Disinfection, Bacterial Deactivation, Contamination, Visible Light, Depollution, Anatase
A novel class of photocatalytic coating capable of degrading bacterial and chemical contaminants in the presence of visible sunlight wavelengths was produced by depositing a stable photocatalytic TiO2 film on the internal lumen of glass bottles via a sol gel method. This coating was prepared in either undoped form or doped with nitrogen and/or copper to produce visible light-active TiO2 films which were annealed at 600 °C and were characterized by Raman, UV-Vis, and X-ray photoelectron spectroscopy. The presence of doped and undoped TiO2 films was found to accelerate the degradation of methylene blue in the presence of natural sunlight, while copper-doped TiO2 films were found to accelerate bacterial inactivation (of E. coli and E. faecalis) in the presence of natural sunlight.
Physics | Physiology
Fisher MB, Keane DA, Fernandez-Ibanez P, Colreavy J, Hinder SJ, McGuigan KG, Pillai SC. Nitrogen and Copper doped solar light active TiO2 photocatalyst for water decontamination. Applied Catalysis B: Environmental. 2013;130-131:8-13.