Abstract
The results of studies on the TiO2 photocatalytic oxidation of model air pollutants are summarized. The kinetics of photocatalytic oxidation of CO and the vapors of a number of simple organic substances was studied in detail. It was found that, in the course of reaction, all of the test substances underwent complete mineralization. Gaseous substrates were converted with the participation of several types of reaction centers. The photocatalytic oxidation of sulfur- and phosphorus-containing substances resulted in gradual deactivation of the photocatalyst; however, its activity can be restored by washing the photocatalyst with water. It was found that, along with oxidation, the steps of hydrolysis play an important role in the photocatalytic degradation of air pollutants, such as dimethyl methylphosphonate and 2-chloroethyl sulfide.
Similar content being viewed by others
REFERENCES
Miller, R. and Fox, R., Photocatalytic Purification and Treatment of Water and Air, Ollis, D.F. and Al-Ekabi, H., Eds., Amsterdam: Elsevier, 1993, p. 573.
Vorontsov, A.V., Savinov, E.N., Kurkin, E.N., Horbova, O.D., and Parmon, V.N., React. Kinet. Catal. Lett., 1997, vol. 62, no.1, p. 83.
Vorontsov, A.V., Savinov, E.N., Barannik, G.B., Troitsky, V.N., and Parmon, V.N., Catal. Today, 1997, vol. 39, p. 207.
Vorontsov, A.V. and Savinov, E.N., Chem. Eng. J., 1998, vol. 70, no.3, p. 231.
Vorontsov, A.V., Kozlov, D.V., Smirniotis, P.G., and Parmon, V.N., Kinet. Catal., 2005, vol. 46, no.2, p. 203.
Vorontsov, A.V., Kurkin, E.N., and Savinov, E.N., J. Catal., 1999, vol. 186, p. 318.
Vorontsov, A.V., Stoyanova, I.V., Kozlov, D.V., Simagina, V.I., and Savinov, E.N., J. Catal., 2000, vol. 189, p. 360.
Kozlov, D.V., Paukshtis, E.A., and Savinov, E.N., Appl. Catal., B, 2000, vol. 24, p. 7.
Nimlos, M.R., Wolfrum, E.J., Brewer, M.L., Fennell, J.A., and Bintner, G., Environ. Sci. Technol., 1996, vol. 30, p. 3102.
Peral, J. and Ollis, D.F., J. Catal., 1992, vol. 136, p. 554.
Vorontsov, A.V. and Dubovitskaya, V.P., J. Catal., 2004, vol. 221, no.1, p. 102.
Muggli, D.S. and Falconer, J.L., J. Catal., 1998, vol. 175, p. 213.
Vorontsov, A.V., Savinov, E.N., Davydov, L., and Smirniotis, P.G., Appl. Catal., B, 2001, vol. 32, p. 11.
Kozlov, D.V., Vorontsov, A.V., Smirniotis, P.G., and Savinov, E.N., Appl. Catal., B, 2003, vol. 42, p. 77.
Sauer, M.L. and Ollis, D.F., J. Catal., 1996, vol. 163, p. 215.
Nakamoto, K., Infrared and Raman Spectra of Inorganic and Coordinated Compounds, New York: Wiley, 1986.
Socrates, G., Infrared Characteristic Group Frequencies, New York: Wiley, 1994.
Vorontsov, A.V., Savinov, E.N., Lion, C., and Smirniotis, P.G., Appl. Catal., B, 2003, vol. 44, p. 25.
Vorontsov, A.V., Panchenko, A.A., Savinov, E.N., Lion, C., and Smirniotis, P.G., Environ. Sci. Technol., 2002, vol. 36, no.23, p. 5261.
Vorontsov, A.V., Lion, C., Savinov, E.N., and Smirniotis, P.G., J. Catal., 2003, vol. 44, no.1, p. 25.
Vorontsov, A.V., Davydov, L., Reddy, E.P., Lion, C., Savinov, E.N., and Smirniotis, P.G., New J. Chem., 2002, vol. 26, no.6, p. 732.
Author information
Authors and Affiliations
Additional information
__________
Translated from Kinetika i Kataliz, Vol. 46, No. 3, 2005, pp. 450–465.
Original Russian Text Copyright © 2005 by Vorontsov, Kozlov, Smirniotis, Parmon.
Rights and permissions
About this article
Cite this article
Vorontsov, A.V., Kozlov, D.V., Smirniotis, P.G. et al. TiO2 Photocatalytic Oxidation: II. Gas-Phase Processes. Kinet Catal 46, 422–436 (2005). https://doi.org/10.1007/s10975-005-0095-7
Received:
Issue Date:
DOI: https://doi.org/10.1007/s10975-005-0095-7