Nitrogen-doped titanium dioxide (N-doped TiO2) photocatalysts were prepared by a mechanochemical method by using a high-speed ball milling of P25 TiO2 with nitrogen sources such as ammonia solution, hexamine, and urea. Visible-light absorption was determined from the onset of diffused reflectance spectrum. The photocatalytic activity of the N-doped TiO2 was evaluated through the removal of methylene blue (MB) under visible-light irradiation. The effects of nitrogen precursors used during the mechanochemical synthesis on the catalysts’ properties, such as the effective particle size, surface area, and photocatalytic activity, were extensively investigated.
Research on Chemical Intermediates – Springer Journals
Published: Mar 4, 2009
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