Kim, Kyung Nam and Hoffmann, Michael R. (2008) Heterogeneous photocatalytic degradation of ethylene glycol and propylene glycol. Korean Journal of Chemical Engineering, 25 (1). pp. 89-94. ISSN 0256-1115. doi:10.1007/s11814-008-0015-4. https://resolver.caltech.edu/CaltechAUTHORS:20150806-141030325
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Abstract
The photocatalytic decomposition of ethylene glycol and propylene glycol was investigated by using UV-illuminated TiO_2 and metal-loaded TiO_2 catalysts. The effects of pH, initial concentration, and wavelength of light on the decomposition rate of the glycols were explored. Platinum-and palladium-loaded TiO_2 catalysts enhanced the rates of photodecomposition compared to unloaded TiO_2. The glycols were oxidized primarily to carbon dioxide and water. Formaldehyde was found to be an important reaction intermediate. A detailed chemical reaction mechanism for the destruction of ethylene glycol and propylene glycol in water via free radical pathway and trapped hole reactions at the particle surface is proposed.
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| Additional Information: | © 2008 Springer. Received 7 April 2007, accepted 13 June 2007. | |||||||||
| Subject Keywords: | Ethylene Glycol, Metal Loaded Photocatalyst, Oxidation, Photocatalysis, Photocatalytic Activity, Propylene Glycol, TiO2 | |||||||||
| Issue or Number: | 1 | |||||||||
| DOI: | 10.1007/s11814-008-0015-4 | |||||||||
| Record Number: | CaltechAUTHORS:20150806-141030325 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150806-141030325 | |||||||||
| Official Citation: | Kim, K.N. & Hoffmann, M.R. Korean J. Chem. Eng. (2008) 25: 89. https://doi.org/10.1007/s11814-008-0015-4 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 59267 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 07 Aug 2015 19:13 | |||||||||
| Last Modified: | 10 Nov 2021 22:17 |
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