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International Journal of Photoenergy
Volume 2012, Article ID 921412, 10 pages
http://dx.doi.org/10.1155/2012/921412
Research Article

Highly Active Rare-Earth-Metal La-Doped Photocatalysts: Fabrication, Characterization, and Their Photocatalytic Activity

1Department of Chemistry, Anna University, Chennai 600 025, India
2Department of Applied Chemistry, Kanagawa Institute of Technology, 1030 Shimoogino, Atsugi, Kanagawa 243-0292, Japan

Received 15 July 2011; Revised 23 September 2011; Accepted 24 September 2011

Academic Editor: Jinlong Zhang

Copyright © 2012 S. Anandan 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. N. Serpone and E. Pelizzetti, Photocatalysis: Fundamentals and Applications, John Wiley & Sons, New York, NY, USA, 1989.
  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 Google Scholar · View at Scopus
  3. A. Fujishima, T. N. Rao, and D. A. Tryk, “Titanium dioxide photocatalysis,” Journal of Photochemistry and Photobiology C: Photochemistry Reviews, vol. 1, pp. 1–21, 2000. View at Google Scholar
  4. Z. Zou, J. Ye, K. Sayama, and H. Arakawa, “Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst,” Nature, vol. 414, no. 6864, pp. 625–627, 2002. View at Publisher · View at Google Scholar · View at PubMed · View at Scopus
  5. Y. Wang, Y. Hao, H. Cheng et al., “Photoelectrochemistry of transition metal-ion-doped TiO2 nanocrystalline electrodes and higher solar cell conversion efficiency based on Zn2+-doped TiO2 electrode,” Journal of Materials Research, vol. 34, no. 12, pp. 2773–2779, 1999. View at Publisher · View at Google Scholar · View at Scopus
  6. P. Yang, C. Lu, N. P. Hua, and Y. K. Du, “Titanium dioxide nanoparticles co-doped with Fe3+ and Eu3+ ions for photocatalysis,” Materials Letters, vol. 57, no. 8, pp. 794–801, 2002. View at Google Scholar
  7. J. Moon, H. Takagi, Y. Fujishiro, and M. Awano, “Preparation and characterization of the Sb-doped TiO2 photocatalysts,” Journal of Materials Science, vol. 36, no. 4, pp. 949–955, 2001. View at Publisher · View at Google Scholar · View at Scopus
  8. R. Asahi, T. Morikawa, T. Ohwaki, K. Aoki, and Y. Taga, “Visible-light photocatalysis in nitrogen-doped titanium oxides,” Science, vol. 293, no. 5528, pp. 269–271, 2001. View at Publisher · View at Google Scholar · View at PubMed · View at Scopus
  9. W. Choi, A. Termin, and M. R. Hoffmann, “The role of metal ion dopants in quantum-sized TiO2: correlation between photoreactivity and charge carrier recombination dynamics,” Journal of Physical Chemistry, vol. 98, no. 51, pp. 13669–13679, 1994. View at Google Scholar · View at Scopus
  10. Y. Zhang, M. Wang, and J. Xu, “The synthesis and characterization of picolinic acid: Eu3+ complex in SiO2 xerogels and energy transfer from picolinic acid to Eu3+1,” Materials Science and Engineering: B, vol. 47, p. 23, 1997. View at Google Scholar
  11. S. T. Selvan, T. Hayakawa, and M. Nogami, “Remarkable influence of silver islands on the enhancement of fluorescence from Eu3+ ion-doped silica gels,” Journal of Physical Chemistry B, vol. 103, no. 34, pp. 7064–7067, 1999. View at Google Scholar · View at Scopus
  12. M.-H. Lee, S.-G. Oh, and S.-C. Yi, “Preparation of Eu-doped Y2O3 luminescent nanoparticles in nonionic reverse microemulsions,” Journal of Colloid and Interface Science, vol. 226, no. 1, pp. 65–70, 2000. View at Publisher · View at Google Scholar · View at PubMed
  13. A. Kurita, T. Kushida, T. Izumitani, and M. Matsukawa, “Room-temperature persistent spectral hole burning in Sm2+-doped fluoride glasses,” Optics Letters, vol. 19, no. 5, pp. 314–316, 1994. View at Google Scholar · View at Scopus
  14. Th. Schmidt, R. M. MacFarlane, and S. Völker, “Persistent and transient spectral hole burning in Pr3+- and Eu3+-doped silicate glasses,” Physical Review B, vol. 50, no. 21, pp. 15707–15718, 1994. View at Publisher · View at Google Scholar · View at Scopus
  15. K. Fujita, K. Hirao, K. Tanaka, N. Soga, and H. Sasaki, “Persistent spectral hole burning of Eu3+ ions in sodium aluminosilicate glasses,” Journal of Applied Physics, vol. 82, no. 10, pp. 5114–5120, 1997. View at Google Scholar · View at Scopus
  16. H. Yoshioka and S. Kikkawa, “Oxide ion conduction in A-site deficient La-Ti-Al-O perovskite,” Journal of Materials Chemistry, vol. 8, no. 8, pp. 1821–1826, 1998. View at Google Scholar · View at Scopus
  17. I. Atribak, I. S. Basáñez, A. B. López, and A. García García, “Catalytic activity of La-modified TiO2 for soot oxidation by O2,” Catalysis Communications, vol. 8, no. 3, pp. 478–482, 2007. View at Publisher · View at Google Scholar
  18. S. Anandan, A. Vinu, K. L. P. S. Lovely et al., “Photocatalytic activity of La-doped ZnO for the degradation of monocrotophos in aqueous suspension,” Journal of Molecular Catalysis A: Chemical, vol. 266, no. 1-2, pp. 149–157, 2007. View at Publisher · View at Google Scholar · View at Scopus
  19. Y. Ohko, K. I. Iuchi, C. Niwa et al., “17β-estradiol degradation by TiO2 photocatalysis as a means of reducing estrogenic activity,” Environmental Science and Technology, vol. 36, no. 19, pp. 4175–4181, 2002. View at Publisher · View at Google Scholar · View at Scopus
  20. M. V. Shankar, S. Anandan, N. Venkatachalam, B. Arabindoo, and V. Murugesan, “Fine route for an efficient removal of 2,4-dichlorophenoxyacetic acid (2,4-D) by zeolite-supported TiO2,” Chemosphere, vol. 63, no. 6, pp. 1014–1021, 2006. View at Publisher · View at Google Scholar · View at PubMed · View at Scopus
  21. N. Serpone and A. Salinaro, “Terminology, relative photonic efficiencies and quantum yields in heterogeneous photocatalysis. Part I: suggested protocol,” Pure and Applied Chemistry, vol. 71, no. 2, pp. 303–320, 1999. View at Google Scholar
  22. R. D. Shannon, “Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides,” Acta Crystallographica Section A. Crystal Physics, Diffraction, Theoretical and General Crystallography, vol. 32, pp. 751–767, 1976. View at Google Scholar
  23. J. Lin and J. C. Yu, “An investigation on photocatalytic activities of mixed TiO2-rare earth oxides for the oxidation of acetone in air,” Journal of Photochemistry and Photobiology A: Chemistry, vol. 116, no. 1, pp. 63–67, 1998. View at Google Scholar
  24. J. A. Dean, Lange's Handbook of Chemistry, McGraw-Hill, New York, NY, USA, 15th edition, 1999.
  25. C. P. Sibu, S. R. Kumar, P. Mukundan, and K. G. Warrier, “Structural modifications and associated properties of lanthanum oxide doped sol-gel nanosized titanium oxide,” Chemistry of Materials, vol. 14, no. 7, pp. 2876–2881, 2002. View at Publisher · View at Google Scholar
  26. K. S. W. Singh, D. H. Everett, R. A. W. Haul et al., “Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity,” Pure and Applied Chemistry, vol. 57, no. 4, pp. 603–619, 1985. View at Google Scholar
  27. D. Das, H. K. Mishra, A. K. Dalai, and K. M. Parida, “Iron, and manganese doped SO 42-/ZrO 2-TiO2 mixed oxide catalysts: studies on acidity and benzene isopropylation activity,” Catalysis Letters, vol. 93, no. 3-4, pp. 185–193, 2004. View at Google Scholar · View at Scopus
  28. M. O. Abou-Helal and W. T. Seeber, “Preparation of TiO2 thin films by spray pyrolysis to be used as a photocatalyst,” Applied Surface Science, vol. 195, no. 1–4, pp. 53–62, 2002. View at Publisher · View at Google Scholar · View at Scopus
  29. J. F. Moulder, W. F. Stickle, P. E. Sobol, and K. D. Bomben, Handbook of X-Ray Photoelectron Spectroscopy, Physical Electronics Division/Perkin-Elemer, Eden Prairie, Minn, USA, 1992.
  30. L. Wu, J. C. Yu, L. Z. Zhang, X. C. Wang, and W. K. Ho, “Preparation of a highly active nanocrystalline TiO2 photocatalyst from titanium oxo cluster precursor,” Journal of Solid State Chemistry, vol. 177, no. 7, pp. 2584–2590, 2004. View at Publisher · View at Google Scholar · View at Scopus
  31. J. C. Yu, J. G. Yu, H. Y. Tang, and L. Z. Zhang, “Effect of surface microstructure on the photoinduced hydrophilicity of porous TiO2 thin films,” Journal of Materials Chemistry, vol. 12, no. 1, pp. 81–85, 2002. View at Publisher · View at Google Scholar
  32. M. N. Islam, T. B. Ghosh, K. L. Chopra, and H. N. Acharya, “XPS and X-ray diffraction studies of aluminum-doped zinc oxide transparent conducting films,” Thin Solid Films, vol. 280, no. 1-2, pp. 20–25, 1996. View at Google Scholar · View at Scopus
  33. J. Liqiang, S. Xiaojun, X. Baifu, W. Baiqi, C. Weimin, and F. Honggang, “The preparation and characterization of la doped TiO2 nanoparticles and their photocatalytic activity,” Journal of Solid State Chemistry, vol. 177, no. 10, pp. 3375–3382, 2004. View at Publisher · View at Google Scholar · View at Scopus
  34. K. L. Frindell, J. Tang, J. H. Harreld, and G. D. Stucky, “Enhanced mesostructural order and changes to optical and electrochemical properties induced by the addition of cerium(III) to mesoporous titania thin films,” Chemistry of Materials, vol. 16, no. 18, pp. 3524–3532, 2004. View at Publisher · View at Google Scholar · View at Scopus
  35. T. Sato and Y. Fukugami, “Synthesis and photocatalytic properties of TiO2 and Pt pillared HCa2Nb3O10 doped with various rare earth ions,” Solid State Ionics, vol. 141-142, pp. 397–405, 2001. View at Publisher · View at Google Scholar · View at Scopus
  36. R. Terzian, N. Serpone, and M. A. Fox, “Primary radicals in the photo-oxidation of aromatics—reactions of xylenols with $"OH,N@3^$" and H$" radicals and formation and characterization of dimethylphenoxyl, dihydroxydimethylcyclohexadienyl and hydroxydimethylcyclohexadienyl radicals by pulse radiolysis,” Journal of Photochemistry and Photobiology, A: Chemistry, vol. 90, no. 2-3, pp. 125–135, 1995. View at Google Scholar · View at Scopus
  37. V. Subramanian, E. Wolf, and P. V. Kamat, “Semiconductor-metal composite nanostructures. To what extent do metal nanoparticles improve the photocatalytic activity of TiO2 films?” Journal of Physical Chemistry B, vol. 105, no. 46, pp. 11439–11446, 2001. View at Publisher · View at Google Scholar · View at Scopus
  38. L. Zang, C. Lange, I. Abraham, S. Storck, W. F. Maier, and H. Kisch, “Amorphous microporous titania modified with platinum(IV) chloride—a new type of hybrid photocatalyst for visible light detoxification,” Journal of Physical Chemistry B, vol. 102, no. 52, pp. 10765–10771, 1998. View at Google Scholar · View at Scopus
  39. A. Heller, “Optically transparent metallic catalysts on semiconductors,” Pure and Applied Chemistry, vol. 58, no. 9, pp. 1189–1192, 1986. View at Google Scholar · View at Scopus
  40. A. Dawson and P. V. Kamat, “Semiconductor-metal nanocomposites. Photoinduced fusion and photocatalysis of gold-capped TiO2 (TiOa/Gold) nanoparticles,” Journal of Physical Chemistry B, vol. 105, no. 5, pp. 960–966, 2001. View at Google Scholar · View at Scopus
  41. W. Chen, D. Hua, T. J. Ying, and Z. J. Mei, “Photocatalytic activity enhancing for TiO2 photocatalyst by doping with La,” Transactions of Nonferrous Metals Society of China, vol. 16, pp. s728–s731, 2006. View at Publisher · View at Google Scholar