Photocatalytic degradation of chlorinated ethenes
Degradation of three chlorinated ethenes, trichloroethylene, trans-1,2-dichloroethylene and cis-1,2-dichloroethylene, by UV-light irradiated TiO2 catalyst prepared by the sol-gel method in dry air at ambient temperature have been examined by using FTIR measurement. The chlorinated ethenes rapidly de...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2003-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X03000059 |
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| Summary: | Degradation of three chlorinated ethenes, trichloroethylene, trans-1,2-dichloroethylene and cis-1,2-dichloroethylene, by UV-light irradiated TiO2 catalyst prepared by the sol-gel method in dry air at ambient
temperature have been examined by using FTIR measurement. The chlorinated ethenes rapidly decomposed
to produce dichloroacethyl chloride, CO, HCl, and COCL2. For trans- and cis-1,2-DCE systems isomerization
to each other is found to be the first step of the degradation. The C = C bond of the chlorinated ethenes
interacts directly with TiO2 site and, consequently, the degradation results in several products on the catalyst
surface in these systems. |
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| ISSN: | 1110-662X |