Sonochemical Synthesis of Nitrogen Doped TiO₂ at a Low Temperature

Abstract:

A visible-light activated photocatalyst N-doped TiO₂ nanocrystalline was synthesized via sonochemical method at low temperature. The N-doped anatase TiO₂ nanoparticles were prapared by sonication of the solution of tetrabutyl titanium and ammonium in water and ethanol at 70 °C for 150 min. The crystalline forms and crystallite sizes of the as-prepared sample is characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and UV-Visible absorption spectrum.The product structure was dependent upon the reaction temperature and reaction time. The photocatalytic activity of the as-prepared photocatalyst was evaluated via the photodegradation of a basic dye methyl violet. The results show that the N-doped TiO₂ nanocrystalline prepared by sonication has an excellent photocatalytic activity under UV light and simulated sunlight.

• Periodical: Advanced Materials Research (Volumes 356-360)
• Pages: 403-406
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.356-360.403
• Online since: October 2011
• Authors: Xi Kui Wang, Chen Wang, Wei Lin Guo
• Keywords: Nitrogen Doped TiO₂, Photocatalyst, Preparation, Sonochemistry

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