Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received September 11, 2001
Accepted October 17, 2001
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Photocatalytic Oxidation of Ethylene to CO2 and H2O on Ultrafine Powdered TiO2 Photocatalysts: Effect of the Presence of O2 and H2O and the Addition of Pt
Center for Gas Utilization Technology(CGUT), R&D Division, Korea Gas Cororation, 638-1, Ansan 425-790, Kynggi-Do, Korea 1Dept. of Chemical Eng., Korea Polytechnic University, 3Ga-101, Jungwang-Dong, Shihung-City, Kyunggi-Do 429-793, Korea 2Department of Chemical Engineering, Sogang University, C.P.O. Box 1142, Seoul 121-742, Korea 3Department of Applied Chemistry, College of Engineering, Osaka Prefecture University, Gakuen-cho, Sakai, Osaka 599-8531, Japan
drpark@kogas.re.kr
Korean Journal of Chemical Engineering, November 2001, 18(6), 930-934(5), 10.1007/BF02705621
Download PDF
Abstract
The complete photocatalytic oxidation of C2H4 with O-2 into CO2 and H2O has been achieved on ultrafine powdered TiO2 photocatalysts and the addition of H2O was found to enhance the reaction. The photocatalytic reaction has been studied by IR, ESR, and analysis of the reaction products. UV irradiation of the photocatalysts at 275 K led to the photocatalytic oxidation of C2H4 with O-2 into CO2, CO, and H2O. The large surface area of the photocatalyst is one of the most important factors in achieving a high efficiency in the photocatalytic oxidation of C2H4. The photo-formed OH species as well as O-2(-) and O-3(-) anion radicals play a significant role as a key active species in the complete photocatalytic oxidation of C2H4 with O-2 into CO2 and H2O. Interestingly, small amount of Pt addition to the TiO2 photocatalyst increased the amount of selective formation of CO2 which was the oxidation product of C2H4 and O-2.
Keywords
References
Anpo M, Res. Chem. Intermed., 9, 67 (1989)
Anpo M, Chiba K, Tomonari M, Coluccia S, Che M, Fox MA, Bull. Chem. Soc. Jpn., 64, 543 (1991)
Anpo M, Catal. Surv. Jpn., 1, 169 (1997)
Anpo M, Yamashita H, "Heterogeneous Photocatalysis," M. Schiavelo, Ed., Wiley, Chichester, 133 (1997)
Anpo M, Yamashita H, Ichihashi Y, Fujii Y, Honda M, J. Phys. Chem. B, 101(14), 2632 (1997)
Chai YS, Lee JC, Kim BW, Korean J. Chem. Eng., 17(6), 633 (2000)
Fox MA, Dulay MT, Chem. Rev., 93, 341 (1993)
Graf JC, "Photocatalytic Oxidation of Volatile Organic Contaminants," 5th ICES SAE 951660 (1995)
Meagher JM, Heicklen J, J. Phys. Chem., 80(15), 1645 (1976)
Kamat PV, Chem. Rev., 93, 267 (1993)
Kubokawa Y, Anpo M, Yun C, "Proceedings, 7th International Congress on Catalysis, Tokyo, 1980," Part B, Elsevier, Amsterdam, 1170 (1981)
Lee SG, Lee HI, Korean J. Chem. Eng., 15(5), 463 (1998)
Ollis DF, Al-Ekabi H, "Photocatalytic Purification and Treatment of Water and Air," Elsevier, Amsterdam (1993)
Yamashita H, Kawasaki S, Ichihashi Y, Takeuchi M, Harada M, Anpo M, Louis C, Che M, Korean J. Chem. Eng., 15(5), 491 (1998)
Yamashita H, Ichihashi Y, Harada M, Stewart G, Fox MA, Anpo M, J. Catal., 158(1), 97 (1996)
Anpo M, Chiba K, Tomonari M, Coluccia S, Che M, Fox MA, Bull. Chem. Soc. Jpn., 64, 543 (1991)
Anpo M, Catal. Surv. Jpn., 1, 169 (1997)
Anpo M, Yamashita H, "Heterogeneous Photocatalysis," M. Schiavelo, Ed., Wiley, Chichester, 133 (1997)
Anpo M, Yamashita H, Ichihashi Y, Fujii Y, Honda M, J. Phys. Chem. B, 101(14), 2632 (1997)
Chai YS, Lee JC, Kim BW, Korean J. Chem. Eng., 17(6), 633 (2000)
Fox MA, Dulay MT, Chem. Rev., 93, 341 (1993)
Graf JC, "Photocatalytic Oxidation of Volatile Organic Contaminants," 5th ICES SAE 951660 (1995)
Meagher JM, Heicklen J, J. Phys. Chem., 80(15), 1645 (1976)
Kamat PV, Chem. Rev., 93, 267 (1993)
Kubokawa Y, Anpo M, Yun C, "Proceedings, 7th International Congress on Catalysis, Tokyo, 1980," Part B, Elsevier, Amsterdam, 1170 (1981)
Lee SG, Lee HI, Korean J. Chem. Eng., 15(5), 463 (1998)
Ollis DF, Al-Ekabi H, "Photocatalytic Purification and Treatment of Water and Air," Elsevier, Amsterdam (1993)
Yamashita H, Kawasaki S, Ichihashi Y, Takeuchi M, Harada M, Anpo M, Louis C, Che M, Korean J. Chem. Eng., 15(5), 491 (1998)
Yamashita H, Ichihashi Y, Harada M, Stewart G, Fox MA, Anpo M, J. Catal., 158(1), 97 (1996)
