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 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 Escherichia coli and Enterococcus faecalis) in the presence of natural sunlight.
- Visible light
- Titanium dioxide Photocatalysis
- Thin film
- Emerging pollutants SODIS
- Bacterial deactivation Contamination Visible light Depollution
Fisher, M. B., Keane, D. A., Fernandez Ibanez, P., Colreavy, J., Hinder, S. J., McGuigan, K. G., & Pillai, S. C. (Accepted/In press). Nitrogen and copper doped solar light active TiO2 photocatalysts for water decontamination. Applied Catalysis B: Environmental, 130-13, 8-13. https://doi.org/10.1016/j.apcatb.2012.10.013