Published January 2008
| public
Journal Article
Heterogeneous photocatalytic degradation of ethylene glycol and propylene glycol
- Creators
- Kim, Kyung Nam
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Hoffmann, Michael R.
Chicago
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.
Additional Information
© 2008 Springer. Received 7 April 2007, accepted 13 June 2007.Additional details
- Eprint ID
- 59267
- Resolver ID
- CaltechAUTHORS:20150806-141030325
- Created
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2015-08-07Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field