Abstract
The photocatalytic degradation of organic dyes using TiO2 andsilver-loaded TiO2 has beenstudied. The dyes which were chosen (methyl violet, a cationicdye; Cibacron Blue FMR, areactive dye; and Maxilon Red GRL, a mono azo basic dye)represent the major structuralfamilies of organic dyes. Ag-loading dramatically reduceddegradation time. While theundoped TiO2 degraded about 63% of the total amount ofmethyl violet within 4 min,degradation rose to 95% with Ag-loaded TiO2 within the sametime period. The photo-decomposition of dyes was monitored as a function of pH anddissolved organic and inorganic matters.
This is a preview of subscription content, access via your institution.
References
Correia, V. M., Stephenson, T. and Judd, S. J.: 1994, ‘Characterisation of Textile Wastewaters: A Review’, Environmental Technology 15, 917–929.
Fox, M. A. and Dulay, M. T.: 1993, ‘Heterogeneous Photocatalysis’, Chemical Rev. 93, 341–357.
Goswami, D. Y.: 1997, ‘A Review of Engineering Developments of Aqueous Phase Solar Photocatalytic Detoxification and Disinfection Processes’, Solar Energy Engineering 119, 101–107.
Hoffmann, M. R., Martin, S. T., Choi, W. and Bahnemann, D.W.: 1995, ‘Environmental Applications of Semiconductors Photocatalysis’, Chemical Rev. 95, 69–96.
Kamat, P. V.: 1993, ‘Photochemistry on Nonreactive and Reactive (Semiconductor) Surfaces’, Chemical Rev. 93, 267–300.
Kondo, M. and Jardim, W.: 1991, ‘Photodegradation of Chloroform and Urea Using Ag-Loaded Titanium Dioxide as Catalyst’, Water Res. 25, 823–827.
Ku, Y. and Hsieh, C.-B.: 1992, ‘Photocatalytic Decomposition of 2,4-Dichlorophenol in Aqueous TiO2 Suspensions’, Water Research 26, 1451–1456.
Kutsuna, S., Toma, M., Takeuchi, K. and Ibusuki, T.: 1999, ‘Photocatalytic Degradation of Some Perfluoroalkyl Ethers on the Dark-Adsoption, the Products, and the Implication for a Possible Tropospheric Sink’, Environ. Sci. Technol. 33, 1071–1076.
Legrini, O., Oliveros, E. and Braun, A. M.: 1993, ‘Photochemical Processes for Water Treatment’, Chemical Rev. 93, 671–698.
Linsebigler, A. L., Guangquan, L. and Yates Jr., J. T.: 1995, ‘Photocatalysis on TiO2 Surfaces’, Chemical Rev. 95, 735–758.
Ollis, D. F., Pelizzetti, E. and Serpone, N.: 1991, ‘Destruction of Water Contaminants’, Environ. Sci. Technol. 25, 1523–1529.
Tennakone, K., Punchihewa, S., Wickremanayaka, S. and Tuntrigodda, U.: 1989, ‘Titanium Dioxide Catalysed Photo-Oxidation of Methyl Violet’, J. Photo Chem. Photo Biol. 46, 247–252.
Venkatadri, R. and Peters, R. W.: 1993, ‘Chemical Oxidation Technologies: Ultraviolet Light/Hydrogen Peroxide, Fenton's Reagent, and Titanium Dioxide-Assisted Photocatalysis’, Hazardous Waste and Hazardous Materials 10, 107–149.
Wu, T., Li, T., Zhao, J., Hidaka, H. and Serpone, N.: 1999, ‘TiO2-Assisted Photodegradation of Dyes. 9: Photooxidation of a Squarylium Cyanine Dye in Aqueous Dispersions under Visible Light Irradiation’, Environ. Sci. Technol. 33, 1379–1387.
Zang, L., Macyk, W., Lange, C., Maier, W. F., Antonius, C., Meissner, D. and Kisch, H.: 2000, ‘Visible-Light Detoxification and Charge Generation by Transition Metal Chloride Modified Titania’, Chem. Eur. J. 6, 379–384.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sökmen, M., Allen, D.W., Akkaş, F. et al. Photo-Degradation of Some Dyes using Ag-Loaded Titaniumdioxide. Water, Air, & Soil Pollution 132, 153–163 (2001). https://doi.org/10.1023/A:1012069009633
Issue Date:
DOI: https://doi.org/10.1023/A:1012069009633
- dyes
- photocatalytic degradation
- silver
- titanium dioxide
- wastewater