Hydroxyl radical as an unlikely key intermediate in the photodegradation of emerging pollutants
In this work, a kinetic model, in combination with time-resolved experiments, is applied to assess the involvement of OH in the photodegradation of emerging pollutants (EPs) by means of advanced oxidation processes. In contrast with the general assumption, quenching of the short-lived OH in the real...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/57876 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/57876 |
| Access Level: | acceso abierto |
| Palabra clave: | Laser Flash-Photolysis Photochemical fate Organic-Matter Oxidation Water Acid Pharmaceuticals Degradation Environment Reactivity INGENIERIA TEXTIL Y PAPELERA QUIMICA ORGANICA QUIMICA ANALITICA QUIMICA FISICA |
| Sumario: | In this work, a kinetic model, in combination with time-resolved experiments, is applied to assess the involvement of OH in the photodegradation of emerging pollutants (EPs) by means of advanced oxidation processes. In contrast with the general assumption, quenching of the short-lived OH in the real waters by the (highly diluted) EPs must be very inefficient, so removal of EPs cannot purely rely on the generation and reaction of OH. This suggests that more complex pathways have to be considered to explain the photodegradation of EPs actually achieved under the employed oxidative conditions, possibly involving other reactive species with longer lifetimes or chain degradation processes. |
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