Korean Journal of Chemical Engineering

, Volume 25, Issue 2, pp 364–367

Photocatalytic activities and specific surface area of TiO2 films prepared by CVD and sol-gel method

Materials (Organic, Inorganic, Electronic, Thin Films), Polymer, Fluidization, Particle Technology

Abstract

The photocatalytic activity of CVD grown films shows significant, non-linear (sigmoid-like) dependency on the film thickness. However, the photocatalytic activity of sol-gel grown film is almost independent of the film thickness. The specific surface area of sol-gel grown films is very small, regardless of the film thickness. Conversely, the specific surface area of CVD grown films indicates significant thickness dependency. The specific area and photocatalytic activity were found to show very similar dependencies on the film thickness.

Key words

TiO2 Film Chemical Vapor Deposition Method Sol-Gel Method Specific Surface Area Photocatalytic Activity 

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References

  1. 1.
    K. Pirkanniemi and M. Sillanpaa, Chemosphere, 48, 1047 (2002).CrossRefGoogle Scholar
  2. 2.
    X. Deng, Y. Yue and Z. Gao, Applied Catalysis B, 39, 135 (2002).CrossRefGoogle Scholar
  3. 3.
    C. Chang, Y. Ma, G. Fang, A. Chao, M. Tsai and H. Sung, Chemosphere, 56, 1011 (2004).CrossRefGoogle Scholar
  4. 4.
    P. Pichat, J. Disdier, C. Hoang-Van, D. Mas, G. Goutailler and C. Gaysse, Catal. Today, 63, 363 (2000).CrossRefGoogle Scholar
  5. 5.
    S. Boujday, F. Wunsch, P. Portes, J. Bocquet and C. Colbeau-Justin, Solar Energy Materials & Solar Cells, 83, 421 (2004).CrossRefGoogle Scholar
  6. 6.
    C. Almquist and P. Biswas, J. Catal., 212, 145 (2002).CrossRefGoogle Scholar
  7. 7.
    Y. Yamabi and H. Imai, Thin Solid Films, 434, 86 (2003).CrossRefGoogle Scholar
  8. 8.
    S. C. Jung, S. J. Kim, N. Imaishi and Y. I. Cho, Appl. Catal. B, 55, 253 (2005).CrossRefGoogle Scholar
  9. 9.
    S. C. Jung and N. Imaishi, Korean J. Chem. Eng., 18, 867 (2001).CrossRefGoogle Scholar

Copyright information

© Springer 2008

Authors and Affiliations

  1. 1.Department of Environmental EngineeringSunchon National UniversityJeonnamKorea

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