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Visible-light-driven photocatalytic behavior of tantalum-oxynitride and nitride

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Abstract

Tantalum oxynitride (TaON) and tantalum nitride (Ta3N5) are investigated in detail as visible-light-responsive photocatalysts. It is found that TaON and Ta3N5 evolve H2 or O2 via bandgap excitation in the presence of a sacrificial electron donor or acceptor, respectively. These materials exhibit high stability against photo-corrosion under the reaction conditions for H2 and O2 evolution. Structural and physical properties of these photocatalysts were also investigated in detail.

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Authors and Affiliations

  1. Chemical Resources Laboratory, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, 226-8503, Yokohama, Japan

    T. Takata, G. Hitoki, J. N. Kondo, M. Hara, H. Kobayashi & K. Domen

  2. Department of Chemical Technology, College of Science and Industrial Technology, Kurashiki, University of Science and the Arts, Nishinoura 2640, Tsurajima, 712-8505, Kurashiki, Japan

    T. Takata, G. Hitoki, J. N. Kondo, M. Hara & K. Domen

  3. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Tokyo, Japan

    K. Domen

Authors
  1. T. Takata
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  2. G. Hitoki
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  3. J. N. Kondo
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  4. M. Hara
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  5. H. Kobayashi
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  6. K. Domen
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Correspondence to K. Domen.

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Takata, T., Hitoki, G., Kondo, J.N. et al. Visible-light-driven photocatalytic behavior of tantalum-oxynitride and nitride. Res. Chem. Intermed. 33, 13–25 (2007). https://doi.org/10.1163/156856707779160898

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  • DOI: https://doi.org/10.1163/156856707779160898

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