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| HAL : hal-00511251, version 1 |
| DOI : 10.1016/S1010-6030(01)00425-7 |
| Fiche détaillée |  Récupérer au format |
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| Journal of Photochemistry and Photobiology A: Chemistry 141, 1 (2001) 79-84 |
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| Photocatalysed degradation of cyromazine in aqueous titanium dioxide suspensions: comparison with photolysis. |
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| Gaëlle Goutailler 1Jean-Christophe Valette 1 |
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| (06/2001) |
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| The fate of cyromazine (N-cyclopropyl-1,3,5-triazine-2,4,6-triamine), an insect growth regulator, has been studied upon irradiation as well as its photocatalytic treatment (advanced oxidation technology). Most of the organic compounds occurring during the photodegradation have been identified by means of liquid chromatography and mass spectrometry coupled techniques (LC-MS). The main photoproducts of the first degradation steps are amide-triazines and melamine. Simultaneously, carboxylic acids, such as acrylic, pyruvic and glycolic acids have been identified by LC-UV. These acids are resulting from the cyclopropyl degradation. The melamine (1,3,5-triazine-2,4,6-triamine) is transformed into cyanuric acid (2,4,6-trihydroxy-1,3,5-triazine) by means of three successive deaminations. This compound remains very stable in aqueous solution. |
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| 1 : | Laboratoire d'Instrumentation et de Chimie Analytique en Solution (LICAS) |
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Université Claude Bernard - Lyon I |
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| 2 : | Laboratoire de Photocatalyse, Catalyse et Environnement |
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Ecole Centrale de Lyon |
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| 3 : | Service Central d'Analyse (SCA) |
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CNRS : USR59 |
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| Domaine | : | Chimie/Chimie analytique |
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| Cyromazine – Titanium dioxide – Photolysis – Photodegradation – Photocatalysis |
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| hal-00511251, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00511251 | |
| oai:hal.archives-ouvertes.fr:hal-00511251 | |
| Contributeur : Agnès Bussy | |
| Soumis le : Mardi 24 Août 2010, 12:31:02 | |
| Dernière modification le : Mardi 24 Août 2010, 12:31:02 | |
