Photocatalytic Degradation of Formic Acid via Metal-Supported Titania
Publication: Journal of Environmental Engineering
Volume 122, Issue 3
Abstract
TiO 2 catalysts supported on stainless-steel plates were tested for the photocatalytic degradation of formic acid in an aqueous solution. The metal-supported TiO 2 catalysts showed reaction activities comparable to the commonly used glass-supported catalysts. Preirradiation was needed to activate fully both of the supported catalysts and to obtain reproducible activity data. During the photodegradation reaction, the oxidized surface of the metallic support was reduced and bleached. The activity of the catalyst decreased with an increase in firing temperature, which implies a positive correlation of the activity with the decrease in BET surface area of the TiO 2 catalyst. The apparent reaction rate, R a, increased as the thickness of the TiO 2 film on the support increased. However, the specific reaction rate, R s, calculated per unit of catalyst weight, decreased with an increase in the film thickness for the catalysts fired at temperatures of 300°C or less, and it was nearly constant irrespective of the film thickness for the catalysts fired at temperatures of 400°C or more. The X-ray diffraction patterns of the supported TiO 2 catalysts that were fired at temperatures up to 600°C showed that all of the TiO 2 films had only an anatase structure, and the particle size increased as the firing temperature increased.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Aguado, M. A., Anderson, M. A., and Hill, C. G., Jr. (1994). J. Mol. Catal., 89, 165.
2.
Anpo, M., Aikawa, N., Kubokawa, Y., Che, M., Louis, C., and Giamello, E. (1985). J. Phys. Chem., 89, 5017.
3.
Chester, G., Anderson, M. A., Read, H., and Esplugas, S. (1993). J. Photochem. and Photobiol. A: Chem. 71, 291.
4.
Domenech, X. (1993). Photocatalytic purification and treatment of water and air, D. F. Ollis and H. Al-Ekabi, eds., Elsevier, New York, N.Y.
5.
Fitzgibbons, E. T., Sladek, K. J., and Hartwig, W. H. (1972). J. Electrochem. Soc., 119, 735.
6.
Fox, M. A., and Dulay, M. T. (1993). Chem. Rev., 93, 341.
7.
Herrmann, J. M., Mozzanega, M. -N., and Pichat, P. (1983). J. Photochem., 22, 333.
8.
Ireland, J. C., Klostermann, P., Rice, E. W., and Clark, R. M. (1993). Appl. Envir. Microbiol., 59, 1668.
9.
Jackson, N. B., et al. (1991). J. Electrochem. Soc., 138, 3660.
10.
Lee, H. -Y., and Kim, H. -G. (1993). “Thin solid films,” 229, 187.
11.
Low, G. K. -C., and Matthews, R. W. (1990). Anal. Chim. Acta, 231, 13.
12.
Lu, M. -C., Roam, G. -D., Chen, J. N., and Huang, C. P. (1993). J. Photochem. and Photobiol. A: Chem., 76, 103.
13.
Matsunaga, T., Tomoda, R., Nakajima, T., Nakamura, N., and Komone, T. (1988). Appl. Envir. Microbiol., 54, 1330.
14.
Matthews, R. W. (1986). Water Res., 20, 569.
15.
Matthews, A. (1987). J. Chem., 40, 667.
16.
Matthews, R. W. (1988). 113, 549.
17.
Matthews, R. W., and McEvoy, S. R. (1992). J. Photochem. and Photobiol. A: Chem., 64, 231.
18.
Matthews, R. W. (1993). Photocatalytic purification and treatment of water and air, D. F. Ollis and H. Al-Ekabi, eds., Elsevier, New York, N.Y.
19.
Mills A., and Morris, S. (1993a). J. Photochem. and Photobiol A: Chem., 71, 75.
20.
Mills, A., and Morris, S. (1993b). J. Photochem. and Photobiol. A: Chem., 71, 285.
21.
Mills, A., Davies, R. H., and Worsely, D. (1993). Chem. Soc. Rev., 22, 417.
22.
Pelizzetti, E., Minero, C., Borgarello, E., Tinucci, L., and Serpone, N. (1993). Langmuir, 9, 2995.
23.
Pelizzetti, E., and Minero, C. (1993). Electrochim. Acta, 38, 47.
24.
Pruden, A. L., and Ollis, D. F. (1983). J. Catal., 82, 404.
25.
Sabate, J., Anderson, M. A., Kikkawa, H., Edwards, M., and Hill, C. G. Jr. (1991). J. Catal., 127, 167.
26.
Schiavello, M. (1993). Electrochim. Acta, 38, 11.
27.
Serpone, N., Borgarello, E., Harris, R., Cahill, P., and Borgarello, M. (1986). Solar Energy Mat., 14, 121.
28.
Tanguay, J. F., Suib, S. L., and Coughlin, R. W. (1989). J. Catal., 117, 335.
29.
Tanguay, J. F., Coughlin, R. W., and Suib, S. L. (1990). Novel materials in heterogeneous catalysis, R. T. K. Baker and L. L. Murrel, eds., ACS, New York, N.Y.
30.
Wei, C. et al. (1994). Envir. Sci. Technol., 28, 934.
31.
Xu, Q. (1991). PhD thesis, University of Wisconsin, Madison, Wis.
32.
Yoko, T., Kamiya, K., and Sakka, S. (1987). Yogyo-Kyokai-Si, 95, 12.
33.
Zeltner, W. A., Hill, C. G. Jr., and Anderson, M. A. (1993). Chemtech, May, p. 21.
34.
Zhang, Y., Crittenden, J. C., Hand, D. W., and Perram, D. L. (1994). Envir. Sci. Technol., 28, 435.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 122 • Issue 3 • March 1996
Pages: 217 - 221
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Mar 1, 1996
Published in print: Mar 1996
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.