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International Journal of Photoenergy
Volume 2008 (2008), Article ID 759561, 7 pages
http://dx.doi.org/10.1155/2008/759561
Research Article

Influence of the Synthesis pH on the Properties and Activity of Sol-Gel TiO2 Photocatalysts

1Department of Chemical and Environmental Technology (ESCET), Universidad Rey Juan Carlos, C/ Tulipán s/n, Móstoles 28933, Madrid, Spain
2School of Chemical Engineering and Advanced Materials, University of Newcastle upon Tyne, Bedson Building, Newcastle upon Tyne NE1 7RU, UK

Received 24 August 2007; Accepted 5 January 2008

Academic Editor: Russell Howe

Copyright © 2008 Javier Marugán et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. D. F. Ollis and H. Al-Ekabi, Eds., Photocatalytic Purification and Treatment of Water and Air, Elsevier, Amsterdam, The Netherlands, 1993.
  2. M. R. Hoffmann, S. T. Martin, W. Choi, and D. W. Bahnemann, “Environmental applications of semiconductor photocatalysis,” Chemical Reviews, vol. 95, no. 1, pp. 69–96, 1995. View at Publisher · View at Google Scholar
  3. A. Mills and S. Le Hunte, “An overview of semiconductor photocatalysis,” Journal of Photochemistry and Photobiology A, vol. 108, no. 1, pp. 1–35, 1997. View at Publisher · View at Google Scholar
  4. J.-M. Herrmann, “Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants,” Catalysis Today, vol. 53, no. 1, pp. 115–129, 1999. View at Publisher · View at Google Scholar
  5. A. Mills and S. K. Lee, “Semiconductor photocatalysis,” in Advanced Oxidation Processes for Water and Wastewater Treatment, S. Parsons, Ed., IWA Publishing, London, UK, 2004. View at Google Scholar
  6. J. Marugán, D. Hufschmidt, G. Sagawe, V. Selzer, and D. Bahnemann, “Optical density and photonic efficiency of silica-supported TiO2 photocatalysts,” Water Research, vol. 40, no. 4, pp. 833–839, 2006. View at Publisher · View at Google Scholar
  7. L. Sun and J. R. Bolton, “Determination of the quantum yield for the photochemical generation of hydroxyl radicals in TiO2 suspensions,” Journal of Physical Chemistry, vol. 100, no. 10, pp. 4127–4134, 1996. View at Publisher · View at Google Scholar
  8. T. Egerton and P. Christensen, “Photoelectrocatalysis processes,” in Advanced Oxidation Processes for Water and Wastewater Treatment, S. Parsons, Ed., IWA Publishing, London, UK, 2004. View at Google Scholar
  9. J. C. Harper, P. Christensen, T. Egerton, T. P. Curtis, and J. Gunlazuardi, “Effect of catalyst type on the kinetics of the photoelectrochemical disinfection of water inoculated with E. coli,” Journal of Applied Electrochemistry, vol. 31, no. 6, pp. 623–628, 2001. View at Publisher · View at Google Scholar
  10. I. Mintsouli, N. Philippidis, I. Poulios, and S. Sotiropoulos, “Photoelectrochemical characterisation of thermal and particulate titanium dioxide electrodes,” Journal of Applied Electrochemistry, vol. 36, no. 4, pp. 463–474, 2006. View at Publisher · View at Google Scholar
  11. J. Aguado, R. van Grieken, M.-J. López-Muñoz, and J. Marugán, “A comprehensive study of the synthesis, characterization and activity of TiO2 and mixed TiO2/SiO2 photocatalysts,” Applied Catalysis A, vol. 312, no. 1-2, pp. 202–212, 2006. View at Publisher · View at Google Scholar
  12. P. Christensen, T. P. Curtis, T. Egerton, S. A. M. Kosa, and J. R. Tinlin, “Photoelectrocatalytic and photocatalytic disinfection of E. coli suspensions by titanium dioxide,” Applied Catalysis B, vol. 41, no. 4, pp. 371–386, 2003. View at Publisher · View at Google Scholar
  13. B. O'Regan, J. Moser, M. Anderson, and M. Grätzel, “Vectorial electron injection into transparent semiconductor membranes and electric field effects on the dynamics of light-induced charge separation,” Journal of Physical Chemistry, vol. 94, no. 24, pp. 8720–8726, 1990. View at Publisher · View at Google Scholar
  14. C.-C. Wang and J. Y. Ying, “Sol-gel synthesis and hydrothermal processing of anatase and rutile titania nanocrystals,” Chemistry of Materials, vol. 11, no. 11, pp. 3113–3120, 1999. View at Publisher · View at Google Scholar
  15. H. Zhang and J. F. Banfield, “Understanding polymorphic phase transformation behaviour during growth of nanocrystalline aggregates: insights from TiO2,” Journal of Physical Chemistry B, vol. 104, no. 15, pp. 3481–3487, 2000. View at Publisher · View at Google Scholar
  16. K. Vinodgopal, U. Stafford, K. A. Gray, and P. V. Kamat, “Electrochemically assisted photocatalysis. 2. The role of oxygen and reaction intermediates in the degradation of 4-chlorophenol on immobilized TiO2 particulate films,” Journal of Physical Chemistry, vol. 98, no. 27, pp. 6797–6803, 1994. View at Publisher · View at Google Scholar
  17. P. Christensen, T. Egerton, S. A. M. Kosa, J. R. Tinlin, and K. Scott, “The photoelectrocatalytic oxidation of aqueous nitrophenol using a novel reactor,” Journal of Applied Electrochemistry, vol. 35, no. 7-8, pp. 683–692, 2005. View at Publisher · View at Google Scholar
  18. J. R. Tinlin, “Photoelectrocatalysis by TiO2 electrodes,” University of Newcastle upon Tyne, Newcastle upon Tyne, UK, 2002. View at Google Scholar
  19. C. F. Bohren and D. R. Huffman, Absorption and Scattering of Light by Small Particles, John Wiley & Sons, New York, NY, USA, 1983.
  20. Z. Zhang, C. C. Wang, R. Zakaria, and J. Y. Ying, “Role of particle size in nanocrystalline TiO2-based photocatalysts,” Journal of Physical Chemistry B, vol. 102, no. 52, pp. 10871–10878, 1998. View at Publisher · View at Google Scholar