Improvement in Photocatalytic Activity of TiO2 by Addition of Small Amount of TiO2-xNy

Bin Liu; Yu Hua Wang; Shu Yin; Tsugio Sato

doi:10.4028/www.scientific.net/MSF.620-622.667

Paper Titles

Indium-Sensitized UV Photocatalysts Made from Alkali Titanate Microfibers
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Preparation and Characterization of Fe-Doped BiVO₄
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Influence by Difference of the Photocatalyst Nanoparticle Shape to Skin
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Preparation and Photocatalytic Performance of Nano Titania-Coated Beads
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Improvement in Photocatalytic Activity of TiO₂ by Addition of Small Amount of TiO_2-xN_y
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Photocatalytic Properties of TiO₂-Coatings Mounted on CaAl₂O₄:Eu²⁺, Nd³⁺ without Light Source
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A New Preparation Method of Visible Light Responsive Titanium Dioxide Photocatalytic Films by Sol-Gel Method
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Effective of SiO₂ Addition on the Self-Cleaning and Photocatalytic Properties of TiO₂ Films by Sol-Gel Process
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Synthesis of Mn-N-Codoped TiO₂ Photocatalyst and its Photocatalytic Reactivity under Visible Light Irradiation
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Improvement in Photocatalytic Activity of TiO₂ by Addition of Small Amount of TiO_2-xN_y

Abstract:

Nitrogen doped titania was coupled with the commercial titania nanoparticles by mechanical milling in liquid medium. When small amount of nitrogen doped titania was added into the commercial titania, higher intensity and longer lifetime of 1O2 was observed, and the photocatalytic activity was efficiently improved. The TiO2-xNy acts as the acceptor of photoinduced holes. The recombination of the electron-hole was effectively depressed by the heterogeneous electron transfer. This could be an effective way to obtain high active photocatalyst.