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Preparation of a visible-light-active TiO2 photocatalyst by RF plasma treatment

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Abstract

In order to realize a visible (vis)-light-active TiO2 photocatalyst, reduction treatment using low-temperature hydrogen plasma with elevated temperatures was applied on anatase TiO2 powder of ST-01 without causing a phase transition to rutile. According to plasma-heat treatment, oxygen was evacuated from ST-01 particles and the colored ST-01, ivory to beige, was obtained. XPS results showed non-stoichiometric, expressed as TiO2−x } and x was increased with the increase of treating time. Plasma-heat treated ST-01 showed new ESR signal at g = 2.003 assigned to electrons trapped at the oxygen-defect site. This signal was strengthened when vis-light illumination was applied. Results of vis-light activity tests, evaluated by photocatalytic oxidation of benzoic acid in liquid phase and 2-propanol in gas phase using vis-light illumination (>406 nm), showed excellent activity while low ST-01 showed almost no activity on both tests.

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References

  1. D. E. Ollis, “Photocatalytic Purification and Treatment ofWater and Air” (Elsevier Sci. Pub., New York, 1993).

    Google Scholar 

  2. H. Tang, K. Prasad, R. Sanjines, P. E. Schmidt and F. Levy, J.Appl.Phys. 75 (1994) 2042.

    Google Scholar 

  3. K. Tennakone, C. T. K. Tilakaratne and I. R. M. Kottegoda, Wat.Res. 31 (1997) 1909.

    Google Scholar 

  4. M. R. Hoffmann, S. T Martin, W. Choi and D. W. Bahnemann, Chem.Rev. 95 (1995) 69.

    Google Scholar 

  5. A. Fujishima, K. Hashimoto and T. Watanabe, “TiO2 Photocatalysis: Fundamentals and Applications” (BKC, Tokyo, 1999).

    Google Scholar 

  6. I. Sopyan, M. Watanabe, S. Murasawa, K. Hashimoto and A. Fujishima, J.Photochem. Photobiol.A: Chem 98 (1996) 79.

    Google Scholar 

  7. E. C. Akubuiro and X. E. Verykios, J.Phys.Chem. Solids 50 (1989) 17.

    Google Scholar 

  8. J. Solia, J. C. Conesa, V. Augugliaro, M. Schiarello and A. Sclafani, J.Phys.Chem. 95 (1991) 27.

    Google Scholar 

  9. W. Choi, A. Termin and M. R. Hoffmann, ibid. 98 (1994) 13669.

    Google Scholar 

  10. M. A. Fox and M. T. Dulay, Chem.Rev. 93 (1993) 341.

    Google Scholar 

  11. P. Kofstad, J.Less-Common Metals 13 (1967) 635.

    Google Scholar 

  12. J. Gautron, P. Lemasson and J. Marucco, Faraday Discuss.Chem.Soc. 70 (1981) 81.

    Google Scholar 

  13. P. Salvador, M. L. G. Gonzalez and F. Munoz, J.Phys.Chem. 96 (1992) 10349.

    Google Scholar 

  14. J. D. Brown, D. L. Williamson and A. J. Nozik, ibid. 89 (1985) 3076.

    Google Scholar 

  15. S. Ito, T. Ihara, Y. Miura and M. Kiboku, in Proceeding of Proc. Fourth Annual Int. Conf. of Plasma Chem. and Technol., San Diego, U.S.A., November 1987, edited by H. V. Boenig (Technomic, Lancaster, 1989) p. 151.

    Google Scholar 

  16. I. Izumi, F. F. Fan and A. J. Bard, J.Phys.Chem. 85 (1981) 218.

    Google Scholar 

  17. R. W. Matthews, J.Chem.Soc., Faraday Trans. 80(1) (1984) 457.

    Google Scholar 

  18. H. Harada and T. Ueda, Chem.Phys.Lett. 106 (1984) 229.

    Google Scholar 

  19. K. Schindler and M. Kunst, J.Phys.Chem. 94 (1990) 8222.

    Google Scholar 

  20. S. J. Teichner, and M. Formenti, “Fundamentals and Developments of Photocatalytic and Photoelectrochemical Processes,” Vol. 146, edited by M. Schiavello, NATO ASI Series, Series C (Reidel, Dordrecht, 1985) p. 457.

    Google Scholar 

  21. Y. Ohko, A. Fujishima and K. Hashimoto, J.Phys. Chem.B 102 (1998) 1724.

    Google Scholar 

  22. K. Takeuchi, I. Nakamura, O. Matsumoto, S. Sugihara, M. Ando and T. Ihara, Chemistry Letters (2000) 1354.

  23. P. F. Cornaz, J. H. C. Van Hoof, F. J. Pluijim and G. C. A. Schuit, Disc.Faraday Soc. 41 (1966) 290.

    Google Scholar 

  24. A. M. Volodin, A. E. Cherkashin and V. S. Zakharenko, React.Kinet.Catal.Lett. 11 (1979) 103.

    Google Scholar 

  25. D. C. Cronemeyer, Phys.Rev. 113 (1959) 1222.

    Google Scholar 

  26. S. Sazonova, T. P. Khokhlova, G. M. Sushentseva and N. P. Keier, Kinet.Katiliz 3 (1962) 655.

    Google Scholar 

  27. I. Nakamura, N. Negishi, S. Kutsuna, T. Ihara, S. Sugihara and K. Takeuchi, J.Mol.Catal.A: Chemical 161 (2000) 205.

    Google Scholar 

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Authors and Affiliations

  1. Department of Chemistry and Environmental Technology, Kinki University, Higashi-Hiroshima, 739-2116, Japan

    T. Ihara & M. Miyoshi

  2. Ecodevice Co. Ltd., 3-26-2, Ryogoku, Sumida-ku, Tokyo, 130-0026, Japan

    M. Ando & S. Sugihara

  3. Division of Interdisciplinary Sciences, Yamanashi University, 4-4-37 Takeda, Kofu, 400-8510, Japan

    Y. Iriyama

Authors
  1. T. Ihara
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  2. M. Miyoshi
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  3. M. Ando
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  4. S. Sugihara
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  5. Y. Iriyama
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Correspondence to T. Ihara.

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Ihara, T., Miyoshi, M., Ando, M. et al. Preparation of a visible-light-active TiO2 photocatalyst by RF plasma treatment. Journal of Materials Science 36, 4201–4207 (2001). https://doi.org/10.1023/A:1017929207882

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