Fe(III)-solar light induced degradation of diethyl phthalate (DEP) in aqueous solutions
| Autor: | Bernadette Lavédrine, Mohamed Sarakha, J. Cáceres, Sixto Malato, Gilles Mailhot |
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| Rok vydání: | 2002 |
| Předmět: |
Reaction mechanism
Environmental Engineering Health Toxicology and Mutagenesis Radical Phthalic Acids Photochemistry Diethyl phthalate Ferric Compounds complex mixtures Water Purification Catalysis chemistry.chemical_compound Environmental Chemistry Photodegradation Chromatography High Pressure Liquid Minerals Photolysis Aqueous solution Hydroxyl Radical Chemistry Lasers Public Health Environmental and Occupational Health Water Free-radical reaction General Medicine General Chemistry Pollution Solutions Kinetics Sunlight Spectrophotometry Ultraviolet Hydroxyl radical Water Pollutants Chemical |
| Zdroj: | Chemosphere. 49:525-532 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/s0045-6535(02)00418-6 |
| Popis: | The degradation of diethyl phthalate (DEP) photoinduced by Fe(III) in aqueous solutions has been investigated under solar irradiation in the compound parabolic collector reactor at Plataforma Solar de Almeria. Hydroxyl radicals *OH, responsible of the degradation, are formed via an intramolecular photoredox process in the excited state of Fe(III) aquacomplexes. The primary step of the reaction is mainly due to the attack of *OH radicals on the aromatic ring. For prolonged irradiations DEP and its photoproducts are completely mineralized due to the regeneration of the absorbing species and the continuous formation of *OH radicals that confers a catalytic aspect to the process. Consequently, the degradation photoinduced by Fe(III) could be an efficient method of DEP removal from water. |
| Databáze: | OpenAIRE |
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