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Author: search.filters.author.Khumtong, ThanakornSubject: search.filters.subject.Nitrogen

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    Effect of nitrogen doping on optical and photocatalytic properties of TiO2 thin film prepared by spin coating process
    (2013-01-01)
    Mekprasart, Wanichaya
    ;
    Khumtong, Thanakorn
    ;
    Rattanarak, Jiravat
    ;
    Techitdheera, Wicharn
    ;
    Pecharapa, Wisanu
    Nitrogen-doped TiO<inf>2</inf> thin films were prepared by spin coating on glass substrate. Different amount of nitrogen doped in TiO<inf>2</inf> matrix was 0, 3 and 10%. As-obtained films were annealed at 400°C for 2 h. The optical and photocatalytic properties of N-doped TiO<inf>2</inf> thin films were analyzed via UV-Vis spectrophotometry. The chemical properties were investigated by Fourier transform infrared spectrometer and Raman spectroscopy. When doping TiO<inf>2</inf> with nitrogen, its absorption spectrum is shifted to visible region resulting to the enhancement of photocatalyst properties in dye photodegradation. Raman and FTIR patterns show that N-doped TiO<inf>2</inf> pattern is still identical to undoped TiO<inf>2</inf> pattern resulting to unsubstitutation of nitrogen atom in Ti-O bonding. © 2013 The Authors.
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