Journal of Applied Electrochemistry

, Volume 35, Issue 7–8, pp 693–697 | Cite as

Photocatalytic microreactor study using TiO2-coated porous ceramics

  • Sittidej Teekateerawej
  • Junichi Nishino
  • Yoshio Nosaka


Two kinds of porous ceramic disks, having through-holes with diameters of 0.1 and 0.05 mm, were coated with TiO2 using two different starting solutions: titanyl(IV)acetylacetonate and a commercial titania sol (STS-01). The morphology of these porous ceramics before and after TiO2 coating was observed by SEM. The TiO2-coated porous ceramics were examined as honeycomb photocatalytic microreactors. The photocatalytic activity was evaluated using the decomposition of methylene blue solution for radiation angles of 0° and 10° with respect to the pore axis. The highest photocatalytic activity was obtained for the porous ceramic having the pore diameter of 0.1 mm, coated with titanyl(IV)acetylacetonate and irradiated with a light angle of 0° with respect to the pore axis.

Key words

methylene blue microreactor photocatalyst porous ceramics TiO2 


  1. 1.
    Oppenländer, T. 2003Photochemical Purification of Water and AirWILEY-VCH Verlag, GmbH & Co. KGaAWeinheim112Google Scholar
  2. 2.
    Cassano, A.E., Martin, C.A., Brandi, R.J., Alfano, O.M. 1995Ind. Eng. Chem. Res342155CrossRefGoogle Scholar
  3. 3.
    Schiavello, M. eds. 1985Photoelectrochemistry, Photocatalysis and PhotoreactorsReidelDordrechtGoogle Scholar
  4. 4.
    Teekateerawej, S., Nishino, J., Nosaka, Y. 2003Adv. Tech. Mat. Mat. Proc. J. (ATM)580Google Scholar
  5. 5.
    Zhang, T., Oyama, T., Horikoshi, S., Hidaka, H., Zhao, J., Serpone, N. 2002Sol. Energy Mat. Solar Cells73287Google Scholar
  6. 6.
    De Heredia, J.B., Torregrosa, J., Domingues, J.R., Peres, J.A. 2001J. Hazard. Mater. B83255CrossRefGoogle Scholar
  7. 7.
    Lakshmi, S., Renganathan, R., Fujita, S. 1995J. Photochem. Photobiol. A88163Google Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  • Sittidej Teekateerawej
    • 1
  • Junichi Nishino
    • 1
  • Yoshio Nosaka
    • 1
  1. 1.Department of ChemistryNagaoka University of TechnologyNagaokaJapan

Personalised recommendations