Abstract
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.
Original language | English |
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Pages (from-to) | 8-13 |
Journal | Applied Catalysis B: Environmental |
Volume | 130-13 |
DOIs | |
Publication status | Accepted/In press - 14 Oct 2012 |
Keywords
- Sunlight
- Visible light
- Titanium dioxide Photocatalysis
- Thin film
- Emerging pollutants SODIS
- Disinfection
- Bacterial deactivation Contamination Visible light Depollution
- Anatase