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International Journal of Photoenergy
Volume 2010 (2010), Article ID 764870, 11 pages
http://dx.doi.org/10.1155/2010/764870
Review Article

Applications of Photocatalytic Disinfection

Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON, K1N6N5, Canada

Received 28 June 2010; Accepted 11 August 2010

Academic Editor: Detlef W. Bahnemann

Copyright © 2010 Joanne Gamage and Zisheng Zhang. 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. M. Blake, P.-C. Maness, Z. Huang, E. J. Wolfrum, J. Huang, and W. A. Jacoby, “Application of the photocatalytic chemistry of titanium dioxide to disinfection and the killing of cancer cells,” Separation and Purification Methods, vol. 28, no. 1, pp. 1–50, 1999. View at Google Scholar
  2. K. Yogo and M. Ishikawa, “Recent progress in environmental catalytic technology,” Catalysis Surveys from Japan, vol. 4, no. 1, pp. 83–90, 2000. View at Google Scholar
  3. D. Ljubas, “Solar photocatalysis—a possible step in drinking water treatment,” Energy, vol. 30, no. 10, pp. 1699–1710, 2005. View at Publisher · View at Google Scholar
  4. H. J. Kool, C. F. Keijl, and J. Hrubec, Water Chlorination: Chemistry, Environmental Impact and Health Effects, Lewis, Chelsia, Mich, USA, 1985.
  5. P. S. M. Dunlop, J. A. Byrne, N. Manga, and B. R. Eggins, “The photocatalytic removal of bacterial pollutants from drinking water,” Journal of Photochemistry and Photobiology A, vol. 148, no. 1–3, pp. 355–363, 2002. View at Publisher · View at Google Scholar
  6. F. W. Pontis, Ed., Water Quality and Treatment, A Handbook of Community Water Supplies, Mc-Graw Hill, New York, NY, USA, 4th edition, 1990.
  7. S. Regli, “Disinfection requirements to control for microbial contamination,” in Regulating Drinking Water Quality, C. E. Gilbert and E. J. Calabrese, Eds., Lewis, Mich, USA, 1992. View at Google Scholar
  8. W. J. Masschelin, Ultraviolet Light in Water and Wastewater Sanitation, Lewis, Boca Raton, Fla, USA, 2002.
  9. J. M. C. Robertson, P. K. J. Robertson, and L. A. Lawton, “A comparison of the effectiveness of TiO2 photocatalysis and UVA photolysis for the destruction of three pathogenic micro-organisms,” Journal of Photochemistry and Photobiology A, vol. 175, no. 1, pp. 51–56, 2005. View at Publisher · View at Google Scholar
  10. W.-J. Huang, G.-C. Fang, and C.-C. Wang, “The determination and fate of disinfection by-products from ozonation of polluted raw water,” Science of the Total Environment, vol. 345, no. 1-3, pp. 261–272, 2005. View at Publisher · View at Google Scholar · View at PubMed
  11. M. A. Fox, C. C. Chen, K. Park, and J. N. Younathan, in Organic Transformations in Non-Homogeneous Media, M. A. Fox, Ed., ACS Symposium Series, p. 278, 1985.
  12. A. Fujishima, T. N. Rao, and D. A. Tryk, “Titanium dioxide photocatalysis,” Journal of Photochemistry and Photobiology C, vol. 1, no. 1, pp. 1–21, 2000. View at Google Scholar
  13. A.-G. Rincón and C. Pulgarin, “Use of coaxial photocatalytic reactor (CAPHORE) in the TiO2 photo-assisted treatment of mixed E. coli and Bacillus sp. and bacterial community present in wastewater,” Catalysis Today, vol. 101, no. 3-4, pp. 331–344, 2005. View at Publisher · View at Google Scholar
  14. K. Sunada, T. Watanabe, and K. Hashimoto, “Studies on photokilling of bacteria on TiO2 thin film,” Journal of Photochemistry and Photobiology A, vol. 156, no. 1–3, pp. 227–233, 2003. View at Publisher · View at Google Scholar
  15. T. Matsunaga, R. Tomoda, T. Nakajima, and H. Wake, “Photoelectrochemical sterilization of microbial cells by semiconductor powders,” FEMS Microbiology Letters, vol. 29, no. 1-2, pp. 211–214, 1985. View at Google Scholar
  16. C. Mccullagh, J. M. C. Robertson, D. W. Bahnemann, and P. K. J. Robertson, “The application of TiO2 photocatalysis for disinfection of water contaminated with pathogenic micro-organisms: a review,” Research on Chemical Intermediates, vol. 33, no. 3-5, pp. 359–375, 2007. View at Google Scholar
  17. D. Y. Goswami and D. M. Blake, “Cleaning up with sunshine,” Mechanical Engineering, vol. 118, no. 8, pp. 56–59, 1996. View at Google Scholar
  18. D. Y. Goswami, “A review of engineering developments of aqueous phase solar photocatalytic detoxification and disinfection processes,” Journal of Solar Energy Engineering, Transactions of the ASME, vol. 119, no. 2, pp. 101–107, 1997. View at Google Scholar
  19. M. Romero, J. Blanco, B. Sánchez et al., “Solar photocatalytic degredation of water and air pollutants: challenges and perspectives,” Solar Energy, vol. 66, no. 2, pp. 169–182, 1999. View at Google Scholar
  20. D. Y. Goswami, S. Vijayaraghavan, S. Lu, and G. Tamm, “New and emerging developments in solar energy,” Solar Energy, vol. 76, no. 1-3, pp. 33–43, 2004. View at Publisher · View at Google Scholar
  21. S. Malato, J. Blanco, D. C. Alarcón, M. I. Maldonado, P. Fernández-Ibáñez, and W. Gernjak, “Photocatalytic decontamination and disinfection of water with solar collectors,” Catalysis Today, vol. 122, no. 1-2, pp. 137–149, 2007. View at Publisher · View at Google Scholar
  22. S. S. Block and D. Y. Goswami, “Chemical enhanced sunlight for killing bacteria,” in Proceedings of the ASME International Solar Energy conference, vol. 1, pp. 431–437, 1995.
  23. R. Armon, N. Laot, N. Narkis, and I. Neeman, “Photocatalytic inactivation of different bacteria and bacteriophages in drinking water at different TiO2 concentration with or without exposure to O2,” Journal of Advanced Oxidation Technologies, vol. 3, pp. 145–150, 1998. View at Google Scholar
  24. A. T. Cooper, D. Y. Goswami, and S. S. Block, “Solar photochemical detoxification and disinfection for water treatment in tropical developing countries,” Journal of Advanced Oxidation Technologies, vol. 3, no. 2, pp. 151–154, 1998. View at Google Scholar
  25. M. Biguzzi and G. Shama, “Effect of titanium dioxide concentration on the survival of Pseudomonas stutzeri during irradiation with near ultraviolet light,” Letters in Applied Microbiology, vol. 19, no. 6, pp. 458–460, 1994. View at Google Scholar
  26. H. N. Pham, T. McDowell, and E. Wilkins, “Photocatalytically-mediated disinfection of water using TiO2 as a catalyst and spore-forming Bacillus pumilus as a model,” Journal of Environmental Science and Health. Part A, vol. 30, no. 3, pp. 627–636, 1995. View at Google Scholar
  27. J. C. Sjogren and R. A. Sierka, “Inactivation of phage MS2 by iron-aided titanium dioxide photocatalysis,” Applied and Environmental Microbiology, vol. 60, no. 1, pp. 344–347, 1994. View at Google Scholar
  28. R. J. Watts, S. Kong, M. P. Orr, G. C. Miller, and B. E. Henry, “Photocatalytic inactivation of coliform bacteria and viruses in secondary wastewater effluent,” Water Research, vol. 29, no. 1, pp. 95–100, 1995. View at Publisher · View at Google Scholar
  29. H. Ryu, D. Gerrity, J. C. Crittenden, and M. Abbaszadegan, “Photocatalytic inactivation of Cryptosporidium parvum with TiO2 and low-pressure ultraviolet irradiation,” Water Research, vol. 42, no. 6-7, pp. 1523–1530, 2008. View at Publisher · View at Google Scholar · View at PubMed
  30. M. Sökmen, S. Deǧerli, and A. Aslan, “Photocatalytic disinfection of Giardia intestinalis and Acanthamoeba castellani cysts in water,” Experimental Parasitology, vol. 119, no. 1, pp. 44–48, 2008. View at Publisher · View at Google Scholar · View at PubMed
  31. S. M. Karvinen, “The effects of trace element doping on the optical properties and photocatalytic activity of nanostructured titanium dioxide,” Industrial and Engineering Chemistry Research, vol. 42, no. 5, pp. 1035–1043, 2003. View at Google Scholar
  32. A. Vohra, D. Y. Goswami, D. A. Deshpande, and S. S. Block, “Enhanced photocatalytic inactivation of bacterial spores on surfaces in air,” Journal of Industrial Microbiology and Biotechnology, vol. 32, no. 8, pp. 364–370, 2005. View at Publisher · View at Google Scholar · View at PubMed
  33. E. V. Skorb, L. I. Antonouskaya, N. A. Belyasova, D. G. Shchukin, H. Möhwald, and D. V. Sviridov, “Antibacterial activity of thin-film photocatalysts based on metal-modified TiO2 and TiO2:In2O3 nanocomposite,” Applied Catalysis B, vol. 84, no. 1-2, pp. 94–99, 2008. View at Publisher · View at Google Scholar
  34. J. C. Yu, W. Ho, J. Yu, H. Yip, K. W. Po, and J. Zhao, “Efficient visible-light-induced photocatalytic disinfection on sulfur-doped nanocrystalline titania,” Environmental Science and Technology, vol. 39, no. 4, pp. 1175–1179, 2005. View at Publisher · View at Google Scholar
  35. G. Li, T. An, X. Nie et al., “Mutagenicity assessment of produced water during photoelectrocatalytic degradation,” Environmental Toxicology and Chemistry, vol. 26, no. 3, pp. 416–423, 2007. View at Publisher · View at Google Scholar
  36. T. P. T. Cushnie, P. K. J. Robertson, S. Officer, P. M. Pollard, C. McCullagh, and J. M. C. Robertson, “Variables to be considered when assessing the photocatalytic destruction of bacterial pathogens,” Chemosphere, vol. 74, no. 10, pp. 1374–1378, 2009. View at Publisher · View at Google Scholar · View at PubMed
  37. Y.-S. Choi and B.-W. Kim, “Photocatalytic disinfection of E coli in a UV/TiO2-immobilised optical-fibre reactor,” Journal of Chemical Technology and Biotechnology, vol. 75, no. 12, pp. 1145–1150, 2000. View at Google Scholar
  38. M. Subrahmanyam, P. Boule, V. D. Kumari, D. N. Kumar, M. Sancelme, and A. Rachel, “Pumice stone supported titanium dioxide for removal of pathogen in drinking water and recalcitrant in wastewater,” Solar Energy, vol. 82, no. 12, pp. 1099–1106, 2008. View at Publisher · View at Google Scholar
  39. C. Guillard, T.-H. Bui, C. Felix, V. Moules, B. Lina, and P. Lejeune, “Microbiological disinfection of water and air by photocatalysis,” Comptes Rendus Chimie, vol. 11, no. 1-2, pp. 107–113, 2008. View at Publisher · View at Google Scholar
  40. D. T. Tompkins, W. A. Zeitner, B. J. Lawnicki, and M. A. Anderson, “Evaluation of photocatalysis for gas-phase air cleanin—part 1: process, technical, and sizing considerations,” ASHRAE Transactions, vol. 111, no. 2, pp. 60–84, 2005. View at Google Scholar
  41. D. F. Ollis, “Photocatalytic purification and remediation of contaminated air and water,” Comptes Rendus de l'Academie des Sciences IIC 3, vol. 3, no. 6, pp. 405–411, 2000. View at Google Scholar
  42. W. A. Jacoby, P. C. Maness, E. J. Wolfrum, D. M. Blake, and J. A. Fennell, “Mineralization of bacterial cell mass on a photocatalytic surface in air,” Environmental Science and Technology, vol. 32, no. 17, pp. 2650–2653, 1998. View at Publisher · View at Google Scholar
  43. D. Y. Goswami, D. M. Trivedi, and S. S. Block, “Photocatalytic disinfection of indoor air,” Journal of Solar Energy Engineering, Transactions of the ASME, vol. 119, no. 1, pp. 92–96, 1997. View at Google Scholar
  44. D. Y. Goswami, D. M. Trivedi, and S. S. Block, “Photocatalytic disinfection of indoor air,” Journal of Solar Energy Engineering, Transactions of the ASME, vol. 119, no. 1, pp. 92–96, 1997. View at Google Scholar
  45. T. K. Goswami, S. Hingorani, H. Griest, D. Y. Goswami, and S. S. Block, “Photocatalytic system to destroy bioaerosols in air,” Journal of Advanced Oxidation Technologies, vol. 4, no. 2, pp. 185–188, 1999. View at Google Scholar
  46. H. T. Griest, S. K. Hingorani, K. Kelly, and D. Y. Goswami, “Using scanning electron microscopy to visualize the photocatalytic mineralization of airborne microorganisms,” in Proceedings of the 9th International Conference on Indoor Air Quality and Climate, Processing of the Indoor Air, pp. 712–717, Monterey, Calif, USA, 2002.
  47. C. Lee, H. Choi, C. Lee, and H. Kim, “Photocatalytic properties of nano-structured TiO2 plasma sprayed coating,” Surface and Coatings Technology, vol. 173, no. 2-3, pp. 192–200, 2003. View at Publisher · View at Google Scholar
  48. J.-H. Kau, D.-S. Sun, H.-H. Huang, M.-S. Wong, H.-C. Lin, and H.-H. Chang, “Role of visible light-activated photocatalyst on the reduction of anthrax spore-induced mortality in mice,” PLoS ONE, vol. 4, no. 1, pp. 1–8, 2009. View at Publisher · View at Google Scholar · View at PubMed
  49. H. Knight, “Sars wars,” Engineer, vol. 292, pp. 27–35, 2003. View at Google Scholar
  50. D. Mitoraj, A. Jańczyk, M. Strus et al., “Visible light inactivation of bacteria and fungi by modified titanium dioxide,” Photochemical and Photobiological Sciences, vol. 6, no. 6, pp. 642–648, 2007. View at Publisher · View at Google Scholar · View at PubMed
  51. A. Pal, S. O. Pehkonen, L. E. Yu, and M. B. Ray, “Photocatalytic inactivation of Gram-positive and Gram-negative bacteria using fluorescent light,” Journal of Photochemistry and Photobiology A, vol. 186, no. 2-3, pp. 335–341, 2007. View at Publisher · View at Google Scholar
  52. E. J. Wolfrum, J. Huang, D. M. Blake et al., “Photocatalytic oxidation of bacteria, bacterial and fungal spores, and model biofilm components to carbon dioxide on titanium dioxide-coated surfaces,” Environmental Science and Technology, vol. 36, no. 15, pp. 3412–3419, 2002. View at Publisher · View at Google Scholar
  53. J. Kiwi and V. Nadtochenko, “New evidence for TiO2 photocatalysis during bilayer lipid peroxidation,” Journal of Physical Chemistry B, vol. 108, no. 45, pp. 17675–17684, 2004. View at Publisher · View at Google Scholar
  54. R. Basca, J. Kiwi, T. Ohno, P. Albers, and V. Nadtochenko, “Preparation, testing and characterization of doped TiO2 able to transform biomolecules under visible light irradiation by peroxidation/oxidation,” Journal Physical Chemistry B, vol. 109, pp. 5994–6003, 2005. View at Google Scholar
  55. J. Kiwi and V. Nadtochenko, “Evidence for the mechanism of photocatalytic degradation of the bacterial wall membrane at the TiO2 interface by ATR-FTIR and laser kinetic spectroscopy,” Langmuir, vol. 21, no. 10, pp. 4631–4641, 2005. View at Publisher · View at Google Scholar
  56. V. A. Nadtochenko, A. G. Rincon, S. E. Stanca, and J. Kiwi, “Dynamics of E. coli membrane cell peroxidation during TiO2 photocatalysis studied by ATR-FTIR spectroscopy and AFM microscopy,” Journal of Photochemistry and Photobiology A, vol. 169, no. 2, pp. 131–137, 2005. View at Publisher · View at Google Scholar
  57. V. Nadtochenko, C. Pulgarin, P. Bowen, and J. Kiwi, “Laser spectroscopy of the interaction of bacterial wall membranes and E. coli with TiO2,” Journal of Photochemistry and Photobiology A, vol. 181, pp. 401–404, 2006. View at Google Scholar
  58. M. P. Paschoalino and W. F. Jardim, “Indoor air disinfection using a polyester supported TiO2 photo-reactor,” Indoor Air, vol. 18, no. 6, pp. 473–479, 2008. View at Publisher · View at Google Scholar · View at PubMed
  59. V. Krishna, S. Pumprueg, S.-H. Lee et al., “Photocatalytic disinfection with titanium dioxide coated multi-wall carbon nanotubes,” Process Safety and Environmental Protection, vol. 83, no. 4 B, pp. 393–397, 2005. View at Publisher · View at Google Scholar
  60. S. A. Grinshpun, A. Adhikari, T. Honda et al., “Control of aerosol contaminants in indoor air: combining the particle concentration reduction with microbial inactivation,” Environmental Science and Technology, vol. 41, no. 2, pp. 606–612, 2007. View at Publisher · View at Google Scholar
  61. A. Pal, X. Mint, L. E. Yu, S. O. Pehkonen, and M. B. Ray, “Photocatalytic inactivation of bioaerosols by TiO2 coated membrane,” International Journal of Chemical Reactor Engineering, vol. 3, p. A45, 2005. View at Google Scholar
  62. T. Yuranova, A. G. Rincon, A. Bozzi et al., “Antibacterial textiles prepared by RF-plasma and vacuum-UV mediated deposition of silver,” Journal of Photochemistry and Photobiology A, vol. 161, no. 1, pp. 27–34, 2003. View at Publisher · View at Google Scholar
  63. T. Yuranova, A. G. Rincon, C. Pulgarin, D. Laub, N. Xantopoulos, and H.-J. Mathieu, “Bactericide cotton textiles active in E. coli abatement prepared under mild preparation conditions,” Journal of Photochemistry and Photobiology A, vol. 181, pp. 363–369, 2006. View at Google Scholar
  64. M. I. Mejia, G. Restrepo, J. M. Marin, R. Sanjines, C. Pulgarin, and E. Mielczarski, “Magnetron-sputtered Ag surfaces. New evidence for the nature of the Ag ions intervening in bacterial inactivation,” JACS Applied Materials and Interfaces, vol. 2, pp. 230–235, 2010. View at Google Scholar
  65. M. Paschoalino, N. C. Guedes, W. Jardim, E. Mielczarski, K. Mielczarski, and P. Bowen, “Photo-assisted inactivation of E. coli by high surface area CuO under light irradiation (>360 nm),” Journal of Photochemistry and Photobiology A, vol. 199, pp. 105–111, 2008. View at Google Scholar
  66. A. Moncayo-Lasso, R. A. Torres-Palma, J. Kiwi, N. Benítez, and C. Pulgarin, “Bacterial inactivation and organic oxidation via immobilized photo-Fenton reagent on structured silica surfaces,” Applied Catalysis B, vol. 84, no. 3-4, pp. 577–583, 2008. View at Publisher · View at Google Scholar
  67. F. Chen, X. Yang, and Q. Wu, “Antifungal capability of TiO2 coated film on moist wood,” Building and Environment, vol. 44, no. 5, pp. 1088–1093, 2009. View at Publisher · View at Google Scholar
  68. P. Kern, P. Schwaller, and J. Michler, “Electrolytic deposition of titania films as interference coatings on biomedical implants: microstructure, chemistry and nano-mechanical properties,” Thin Solid Films, vol. 494, no. 1-2, pp. 279–286, 2006. View at Publisher · View at Google Scholar
  69. P. Evans and D. W. Sheel, “Photoactive and antibacterial TiO2 thin films on stainless steel,” Surface and Coatings Technology, vol. 201, no. 22-23, pp. 9319–9324, 2007. View at Publisher · View at Google Scholar
  70. K. Shiraishi, H. Koseki, T. Tsurumoto et al., “Antibacterial metal implant with a TiO2-conferred photocatalytic bactericidal effect against Staphylococcus aureus,” Surface and Interface Analysis, vol. 41, no. 1, pp. 17–22, 2009. View at Publisher · View at Google Scholar
  71. Y. Kubota, T. Shuin, C. Kawasaki et al., “Photokilling of T-24 human bladder cancer cells with titanium dioxide,” British Journal of Cancer, vol. 70, no. 6, pp. 1107–1111, 1994. View at Google Scholar
  72. H. Irie, K. Sunada, and K. Hashimoto, “Recent developments in TiO2 photocatalysis: novel applications to interior ecology materials and energy saving systems,” Electrochemistry, vol. 72, no. 12, pp. 807–812, 2004. View at Google Scholar
  73. S.-H. Lee, S. Pumprueg, B. Moudgil, and W. Sigmund, “Inactivation of bacterial endospores by photocatalytic nanocomposites,” Colloids and Surfaces B, vol. 40, no. 2, pp. 93–98, 2005. View at Publisher · View at Google Scholar · View at PubMed
  74. K. P. Kühn, I. F. Chaberny, K. Massholder et al., “Disinfection of surfaces by photocatalytic oxidation with titanium dioxide and UVA light,” Chemosphere, vol. 53, no. 1, pp. 71–77, 2003. View at Publisher · View at Google Scholar · View at PubMed
  75. Y. Kikuchi, K. Sunada, T. Iyoda, K. Hashimoto, and A. Fujishima, “Photocatalytic bactericidal effect of TiO2 thin films: dynamic view of the active oxygen species responsible for the effect,” Journal of Photochemistry and Photobiology A, vol. 106, no. 1–3, pp. 51–56, 1997. View at Google Scholar
  76. P. Evans, T. English, D. Hammond, M. E. Pemble, and D. W. Sheel, “The role of SiO2 barrier layers in determining the structure and photocatalytic activity of TiO2 films deposited on stainless steel,” Applied Catalysis A, vol. 321, no. 2, pp. 140–146, 2007. View at Publisher · View at Google Scholar
  77. L. Caballero, K. A. Whitehead, N. S. Allen, and J. Verran, “Inactivation of Escherichia coli on immobilized TiO2 using fluorescent light,” Journal of Photochemistry and Photobiology A, vol. 202, no. 2-3, pp. 92–98, 2009. View at Publisher · View at Google Scholar
  78. J. C. Yu, W. Ho, J. Lin, H. Yip, and P. K. Wong, “Photocatalytic activity, antibacterial effect, and photoinduced hydrophilicity of TiO2 films coated on a stainless steel substrate,” Environmental Science and Technology, vol. 37, no. 10, pp. 2296–2301, 2003. View at Publisher · View at Google Scholar
  79. K. Sunada, T. Watanabe, and K. Hashimoto, “Bactericidal activity of copper-deposited TiO2 thin film under weak UV light illumination,” Environmental Science and Technology, vol. 37, no. 20, pp. 4785–4789, 2003. View at Publisher · View at Google Scholar
  80. M.-S. Wong, W.-C. Chu, D.-S. Sun et al., “Visible-light-induced bactericidal activity of a nitrogen-doped titanium photocatalyst against human pathogens,” Applied and Environmental Microbiology, vol. 72, no. 9, pp. 6111–6116, 2006. View at Publisher · View at Google Scholar · View at PubMed
  81. J. A. Rengifo-Herrera, E. Mielczarski, J. Mielczarski, N. C. Castillo, J. Kiwi, and C. Pulgarin, “Escherichia coli inactivation by N, S co-doped commercial TiO2 powders under UV and visible light,” Applied Catalysis B, vol. 84, no. 3-4, pp. 448–456, 2008. View at Publisher · View at Google Scholar
  82. J. A. Rengifo-Herrera, K. Pierzchała, A. Sienkiewicz, L. Forró, J. Kiwi, and C. Pulgarin, “Abatement of organics and Escherichia coli by N, S co-doped TiO2 under UV and visible light. Implications of the formation of singlet oxygen (1O2) under visible light,” Applied Catalysis B, vol. 88, no. 3-4, pp. 398–406, 2009. View at Publisher · View at Google Scholar
  83. J. A. Rengifo-Herrera, J. Kiwi, and C. Pulgarin, “N, S co-doped and N-doped Degussa P-25 powders with visible light response prepared by mechanical mixing of thiourea and urea. Reactivity towards E. coli inactivation and phenol oxidation,” Journal of Photochemistry and Photobiology A, vol. 205, no. 2-3, pp. 109–115, 2009. View at Publisher · View at Google Scholar
  84. J. A. Renigo-Herrera, A. Sienkiewicz, L. Forro, J. Kiwi, J. E. Moser, and C. Pulgarin, “New evidence for the nature of the N, S, co-doped TiO2 sited under visible light leading to E. coli inactivation. Catalyst characterization,” Journal of Physical Chemistry, vol. 114, pp. 2717–2723, 2010. View at Google Scholar
  85. B. A. Walther and P. W. Ewald, “Pathogen survival in the external environment and the evolution of virulence,” Biological Reviews of the Cambridge Philosophical Society, vol. 79, no. 4, pp. 849–869, 2004. View at Publisher · View at Google Scholar
  86. K.-T. Chen, P.-Y. Chen, R.-B. Tang et al., “Sentinel hospital surveillance for rotavirus diarrhea in Taiwan, 2001–2003,” Journal of Infectious Diseases, vol. 192, no. 1, pp. S44–S48, 2005. View at Publisher · View at Google Scholar · View at PubMed
  87. N. Laot, N. Narkis, I. Neeman, and R. Armon, “TiO2 photocatalytic inactivation of selected microorganisms under various conditions: sunlight, intermittent and variable irradiation intensity, CdS supplementation and entrapment of TiO2 into sol-gel,” Journal of Advanced Oxidation Technologies, vol. 4, pp. 97–102, 1999. View at Google Scholar
  88. Y. W. Cheng, R. C. Y. Chan, and P. K. Wong, “Disinfection of Legionella pneumophila by photocatalytic oxidation,” Water Research, vol. 41, no. 4, pp. 842–852, 2007. View at Publisher · View at Google Scholar · View at PubMed
  89. Centers for Disease Control and Prevention, Hospital Control Practices Advisory Committee, “Guidelines for prevention of nosocomial pneumonia,” CDC’s Morbidity and Mortality Weekly Reporter, vol. 46, pp. 1–79, 1997. View at Google Scholar
  90. C. Chawengkijwanich and Y. Hayata, “Development of TiO2 powder-coated food packaging film and its ability to inactivate Escherichia coli in vitro and in actual tests,” International Journal of Food Microbiology, vol. 123, no. 3, pp. 288–292, 2008. View at Publisher · View at Google Scholar · View at PubMed
  91. A. K. Benabbou, Z. Derriche, C. Felix, P. Lejeune, and C. Guillard, “Photocatalytic inactivation of Escherischia coli. Effect of concentration of TiO2 and microorganism, nature, and intensity of UV irradiation,” Applied Catalysis B, vol. 76, no. 3-4, pp. 257–263, 2007. View at Publisher · View at Google Scholar
  92. Y. Liu, J. Li, X. Qiu, and C. Burda, “Bactericidal activity of nitrogen-doped metal oxide nanocatalysts and the influence of bacterial extracellular polymeric substances (EPS),” Journal of Photochemistry and Photobiology A, vol. 190, no. 1, pp. 94–100, 2007. View at Publisher · View at Google Scholar
  93. H. Matsubara, M. Takada, and S. Koyama, “Research on application of photoactive TiO2 to paper,” Kinoshi Kenkyu Kaishi, vol. 34, pp. 36–39, 1996. View at Google Scholar
  94. J. Blanco, S. Malato, P. Fernández-Ibañez, D. Alarcón, W. Gernjak, and M. I. Maldonado, “Review of feasible solar energy applications to water processes,” Renewable and Sustainable Energy Reviews, vol. 13, no. 6-7, pp. 1437–1445, 2009. View at Publisher · View at Google Scholar
  95. K. S. Yao, D. Y. Wang, W. Y. Ho, J. J. Yan, and K. C. Tzeng, “Photocatalytic bactericidal effect of TiO2 thin film on plant pathogens,” Surface and Coatings Technology, vol. 201, no. 15, pp. 6886–6888, 2007. View at Publisher · View at Google Scholar
  96. K. S. Yao, D. Y. Wang, C. Y. Chang et al., “Photocatalytic disinfection of phytopathogenic bacteria by dye-sensitized TiO2 thin film activated by visible light,” Surface and Coatings Technology, vol. 202, no. 4-7, pp. 1329–1332, 2007. View at Publisher · View at Google Scholar
  97. C. Sichel, M. de Cara, J. Tello, J. Blanco, and P. Fernández-Ibáñez, “Solar photocatalytic disinfection of agricultural pathogenic fungi: Fusarium species,” Applied Catalysis B, vol. 74, no. 1-2, pp. 152–160, 2007. View at Publisher · View at Google Scholar
  98. D. Sawada, M. Ohmasa, M. Fukuda et al., “Disinfection of some pathogens of mushroom cultivation by photocatalytic treatment,” Mycoscience, vol. 46, no. 1, pp. 54–60, 2005. View at Publisher · View at Google Scholar
  99. R. Dillert, S. Vollmer, M. Schober et al., “Pilot plant studies on the photocatalytic oxidation of a pretrated industrial wastewater,” GWF Wasser Abwasser, vol. 140, no. 4, pp. 293–297, 1999. View at Google Scholar
  100. R. Dillert, S. Vollmer, E. Gross et al., “Solar-catalytic treatment of an industrial wastewater,” Zeitschrift fur Physikalische Chemie, vol. 213, no. 2, pp. 141–147, 1999. View at Google Scholar
  101. R. Dillert, S. Vollmer, M. Schober et al., “Photokatalytische behandlung eines industriabwassers im stegdoppelplattenreaktor,” Chemie Ingenieur Tecnik, vol. 71, pp. 396–399, 1999. View at Google Scholar
  102. D. Bahnemann, “Photocatalytic water treatment: solar energy applications,” Solar Energy, vol. 77, no. 5, pp. 445–459, 2004. View at Publisher · View at Google Scholar
  103. J. Blanco and S. Malato, “Solar photocatalytic mineralization of real hazardous waste water at pre-industrial level,” in Proceedings of the ASME/JSME/JSES International Solar Energy Conference, D. E. Klett, R. E. Hogan, and T. Tanaka, Eds., pp. 103–109, San Francisco, Calif, USA, 1994.
  104. M. Anhegen, D. Y. Goswami, and G. Svedberg, “Photocatalytic treatment of wastewater from 5-fluoracil manufacturing,” in Proceedings of the ASME/JSME/JSES International Solar Energy Conference, Maui, Hawaii, 1995.
  105. A. H. Zaidi, D. Y. Goswami, and A. C. Wilkie, “Solar photocatalytic post-treatment of anaerobically digested distillery effluent,” in Proceedings of the American Solar Energy Society Annual Conference, pp. 51–56, Minneapolis, Minn, USA, 1995.
  106. C. S. Turchi, L. Edmunson, and D. F. Ollis, “Application of heterogeneous photocatalysis for the destruction of organic contaminants from a paper mill alkali extraction process,” in Proceedings of the TAPPI 5th International Symposium on Wood and Pulping Chemistry, Raleigh, NC, USA, 1989.
  107. O. Seven, B. Dindar, S. Aydemir, D. Metin, M. A. Ozinel, and S. Icli, “Solar photocalytic disinfection of a group of bacteria and fungi aqueous suspensions with TiO2, ZnO and sahara desert dust,” Journal of Photochemistry and Photobiology A, vol. 165, no. 1–3, pp. 103–107, 2004. View at Publisher · View at Google Scholar
  108. M. Otaki, T. Hirata, and S. Ohgaki, “Aqueous microorganisms inactivation by photocatalytic reaction,” Water Science and Technology, vol. 42, no. 3-4, pp. 103–108, 2000. View at Google Scholar
  109. T. Kato, T. Shibata, H. Tohma, M. Tamura, and O. Miki, “Degredation of norovirus in sewage treatment water by photocatalytic ultraviolent disinfection,” Nippon Steel Technical Report, pp. 41–44, 92. View at Google Scholar
  110. R. Dillert, U. Siemon, and D. Bahnemann, “Photocatalytic disinfection of municipal wastewater,” Chemical Engineering and Technology, vol. 21, no. 4, pp. 356–358, 1998. View at Google Scholar
  111. J. A. Herrera Melián, J. M. Doña Rodríguez, A. Viera Suárez et al., “The photocatalytic disinfection of urban waste waters,” Chemosphere, vol. 41, no. 3, pp. 323–327, 2000. View at Publisher · View at Google Scholar
  112. A.-G. Rincón and C. Pulgarin, “Bactericidal action of illuminated TiO2 on pure Escherichia coli and natural bacterial consortia: post-irradiation events in the dark and assessment of the effective disinfection time,” Applied Catalysis B, vol. 49, no. 2, pp. 99–112, 2004. View at Publisher · View at Google Scholar
  113. A. G. Rincón and C. Pulgarin, “Photocatalytical inactivation of E. coli: effect of (continuous-intermittent) light intensity and of (suspended-fixed) TiO2 concentration,” Applied Catalysis B, vol. 44, no. 3, pp. 263–284, 2003. View at Publisher · View at Google Scholar
  114. Y. LI, M. Ma, X. Wang, and X. Wang, “Inactivated properties of activated carbon-supported TiO2 nanoparticles for bacteria and kinetic study,” Journal of Environmental Sciences, vol. 20, no. 12, pp. 1527–1533, 2008. View at Publisher · View at Google Scholar
  115. H. Choi, A. C. Sofranko, and D. D. Dionysiou, “Nanocrystalline TiO2 photocatalytic membranes with a hierarchical mesoporous multilayer structure: synthesis, characterization, and multifunction,” Advanced Functional Materials, vol. 16, no. 8, pp. 1067–1074, 2006. View at Publisher · View at Google Scholar
  116. H. Choi, E. Stathatos, and D. D. Dionysiou, “Photocatalytic TiO2 films and membranes for the development of efficient wastewater treatment and reuse systems,” Desalination, vol. 202, no. 1-3, pp. 199–206, 2007. View at Publisher · View at Google Scholar
  117. Y. Liu, J. Li, X. Qiu, and C. Burda, “Novel TiO2 nanocatalysts for wastewater purification: tapping energy from the sun,” Water Science and Technology, vol. 54, no. 8, pp. 47–54, 2006. View at Publisher · View at Google Scholar
  118. P. H. Gleick, World’s Water 2004-2005, Island Press, Washington, DC, USA, 2004.
  119. L. Villen, F. Manjon, D. Garcia-Fresnadillo, and G. Orellana, “Solar water disinfection by photocatalytic singlet oxygen production in heterogenous medium,” Applied Catalysis B, vol. 69, pp. 1–9, 2006. View at Google Scholar
  120. I. Najm and R. R. Trussel, “New and emerging drinking water treatment technologies,” in Identifying Future Drinking Water Contaminants, p. 220, National Academy, Washington, DC, USA, 1999. View at Google Scholar
  121. M. Boyle, C. Sichel, P. Fernández-Ibáñez et al., “Bactericidal effect of solar water disinfection under real sunlight conditions,” Applied and Environmental Microbiology, vol. 74, no. 10, pp. 2997–3001, 2008. View at Publisher · View at Google Scholar · View at PubMed
  122. E. Ubomba-Jaswa, C. Navntoft, I. Polo-López, P. Fernández-Ibáñez, and K. G. McGuigan, “Solar disinfection of drinking water (SODIS): an investigation of the effect of UVA dose on inactivation efficiency,” Photochemistry and Photobiological Sciences, vol. 8, no. 5, pp. 587–595, 2009. View at Google Scholar
  123. H. Gómez-Couso, M. Fontán-Saínz, C. Sichel, P. Fernández-Ibáñez, and E. Ares-Mazás, “Solar disinfection of turbid waters experimentally contaminated with Cryptosporidium parvum oocysts under real field conditions,” Tropical Medicineand International Health, vol. 14, no. 6, pp. 1–9, 2009. View at Google Scholar
  124. E. Ubomba-Jaswa, P. Fernández-Ibáñez, C. Navntoft, M. Inmaculada Polo-Lópezb, and K. G. McGuigana, “Investigating the microbial inactivation efficiency of a 25 L batch solar disinfection (SODIS) reactor enhanced with a compound parabolic collector (CPC) for household use,” Journal of Chemical Technology and Biotechnology, vol. 85, no. 8, pp. 1028–1037, 2010. View at Publisher · View at Google Scholar
  125. O. A. McLoughlin, P. Fernández-Ibáñez, W. Gernjak, S. Malato Rodriguez, and L. W. Gill, “Photocatalytic disinfection of water using low cost compound parabolic collectors,” Solar Energy, vol. 77, no. 5, pp. 625–633, 2004. View at Publisher · View at Google Scholar
  126. A.-G. Rincón and C. Pulgarin, “Field solar E. coli inactivation in the absence and presence of TiO2: is UV solar dose an appropriate parameter for standardization of water solar disinfection?” Solar Energy, vol. 77, no. 5, pp. 635–648, 2004. View at Publisher · View at Google Scholar
  127. C. Navntoft, P. Araujo, M. I. Litter et al., “Field tests of the solar water detoxification SOLWATER reactor in Los Pereyra, Tucumán, Argentina,” Journal of Solar Energy Engineering, Transactions of the ASME, vol. 129, no. 1, pp. 127–134, 2007. View at Publisher · View at Google Scholar
  128. E. F. Duffy, F. Al Touati, S. C. Kehoe et al., “A novel TiO2-assisted solar photocatalytic batch-process disinfection reactor for the treatment of biological and chemical contaminants in domestic drinking water in developing countries,” Solar Energy, vol. 77, no. 5, pp. 649–655, 2004. View at Publisher · View at Google Scholar
  129. F. Méndez-Hermida, E. Ares-Mazás, K. G. McGuigan, M. Boyle, C. Sichel, and P. Fernández-Ibáñez, “Disinfection of drinking water contaminated with Cryptosporidium parvum oocysts under natural sunlight and using the photocatalyst TiO2,” Journal of Photochemistry and Photobiology B, vol. 88, no. 2-3, pp. 105–111, 2007. View at Publisher · View at Google Scholar · View at PubMed
  130. H. Gómez-Couso, M. Fontán-Sainz, J. Fernández-Alonso, and E. Ares-Mazás, “Excystation of Cryptosporidium parvum at temperatures that are reached during solar water disinfection,” Parasitology, vol. 136, no. 4, pp. 393–399, 2009. View at Publisher · View at Google Scholar · View at PubMed
  131. K. G. McGuigan, F. Méndez-Hermida, J. A. Castro-Hermida et al., “Batch solar disinfection inactivates oocysts of Cryptosporidium parvum and cysts of Giardia muris in drinking water,” Journal of Applied Microbiology, vol. 101, no. 2, pp. 453–463, 2006. View at Publisher · View at Google Scholar · View at PubMed
  132. A.-G. Rincón and C. Pulgarin, “Effect of pH, inorganic ions, organic matter and H2O2 on E. coli K12 photocatalytic inactivation by TiO2: implications in solar water disinfection,” Applied Catalysis B, vol. 51, no. 4, pp. 283–302, 2004. View at Publisher · View at Google Scholar
  133. J. Marugán, R. van Grieken, C. Sordo, and C. Cruz, “Kinetics of the photocatalytic disinfection of Escherichia coli suspensions,” Applied Catalysis B, vol. 82, no. 1-2, pp. 27–36, 2008. View at Publisher · View at Google Scholar
  134. J. C. Ireland, P. Klostermann, E. W. Rice, and R. M. Clark, “Inactivation of Escherichia coli by titanium dioxide photocatalytic oxidation,” Applied and Environmental Microbiology, vol. 59, no. 5, pp. 1668–1670, 1993. View at Google Scholar
  135. J. Wist, J. Sanabria, C. Dierolf, W. Torres, and C. Pulgarin, “Evaluation of photocatalytic disinfection of crude water for drinking-water production,” Journal of Photochemistry and Photobiology A, vol. 147, no. 3, pp. 241–246, 2002. View at Publisher · View at Google Scholar
  136. C. A. Murray, E. H. Goslan, and S. A. Parsons, “TiO2/UV: single stage drinking water treatment for NOM removal?” Journal of Environmental Engineering and Science, vol. 6, no. 3, pp. 311–317, 2007. View at Publisher · View at Google Scholar
  137. S.-C. Kim and D.-K. Lee, “Inactivation of algal blooms in eutrophic water of drinking water supplies with the photocatalysis of TiO2 thin film on hollow glass beads,” Water Science and Technology, vol. 52, no. 9, pp. 145–152, 2005. View at Google Scholar
  138. A. J. Feitz, T. D. Waite, G. J. Jones, B. H. Boyden, and P. T. Orr, “Photocatalytic degredation of the blue-green algal toxin Microcystin-LR in a natural organic-aqueous matrix,” Environmental Science and Technology, vol. 33, no. 2, pp. 243–249, 1999. View at Google Scholar
  139. D. Y. Goswami, J. Klausner, G. D. Mathur et al., “Solar photocatalytic treatment of groundwater at Tyndall AFB, field test results,” in Proceedings of the American Solar Energy Society Annual Conference, Washington, DC, USA, 1993.
  140. P. Fernández-Ibáñez, C. Sichel, M. I. Polo-López, M. de Cara-García, and J. C. Tello, “Photocatalytic disinfection of natural well water contaminated by Fusarium solani using TiO2 slurry in solar CPC photo-reactors,” Catalysis Today, vol. 144, no. 1-2, pp. 62–68, 2009. View at Publisher · View at Google Scholar
  141. M. I. Polo-López, P. Fernández-Ibáñez, I. García-Fernández, I. Oller, I. Salgado-Tránsito, and C. Sichel, “Resistance of Fusarium sp spores to solar TiO2 photocatalysis: influence of spore type and water (scaling-up results),” Journal of Chemical Technology and Biotechnology, vol. 85, pp. 1038–1048, 2010. View at Google Scholar