Degradation of octylbenzene sulfonate photoinduced by iron(III) aquacomplexes: Evidence for the fragmentation of the alkyl chain
| Autor: | Bernadette Lavédrine, Gilles Mailhot, Nadra Debbache, K. Djebbar, Michèle Bolte |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Renewable Energy Sustainability and the Environment Radical lcsh:TJ807-830 lcsh:Renewable energy sources General Chemistry Photochemistry Atomic and Molecular Physics and Optics chemistry.chemical_compound Electron transfer Sulfonate Fragmentation (mass spectrometry) chemistry Degradation (geology) Photochemical degradation General Materials Science Irradiation Alkyl |
| Zdroj: | International Journal of Photoenergy, Vol 7, Iss 2, Pp 71-78 (2005) |
| Popis: | The degradation of octylbenzene sulfonate (OBS) photoinduced by iron(III) aquacomplexes was investigated upon irradiation at 365 nm and by solar light. The photochemical degradation appears to be due toHO•radicals arising from the electron transfer inFe(OH)2+. If oxygen does not affect the initial quantum yield of OBS degradation, it is necessary to pursue the reaction up to, first the complete disappearance of OBS and secondly OBS mineralization. The nature of the major photoproducts gives evidence for a competitive attack ofHO•radicals on the alkyl chain resulting in a shortening of the chain. Among the possible sites on the chain, hydrogen on the carbon inαposition with respect to the aromatic ring was the main point of attack with the formation of 4-acetylbenzene sulfonate and 4-carboxylicbenzene sulfonate. |
| Databáze: | OpenAIRE |
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