New Preparation Method of Visible Light Responsive Titanium Dioxide Photocatalytic Films


We report a new and simple preparation method of the visible light responsive Titanium dioxide (TiO2) photocatalytic films using sol-gel method and ultraviolet light (UV) irradiation. Proposed films were prepared on fused silica plates using titanium tetra-isopropoxide, urea, 2-methoxyethanol, water and UV irradiation. The 650°C-annealed films were carbon-containing anatase type TiO2, not carbon-doped ones. The prepared films absorbed visible light with wavelengths longer than 400 nm. Also, organic dyes were effectively photodegradated by visible light irradiation in the presence of these films.

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Nishizawa, K. , Okada, M. and Watanabe, E. (2014) New Preparation Method of Visible Light Responsive Titanium Dioxide Photocatalytic Films. Materials Sciences and Applications, 5, 112-123. doi: 10.4236/msa.2014.53016.

Conflicts of Interest

The authors declare no conflicts of interest.


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