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Titolo:
Photocatalysed degradation of cyromazine in aqueous titanium dioxide suspensions: comparison with photolysis
Autore:
Goutailler, G; Valette, JC; Guillard, C; Paisse, O; Faure, R;
Indirizzi:
Univ Lyon 1, Lab Instrumentat & Chim Analt Solut, F-69622 Villeurbanne, France Univ Lyon 1 Villeurbanne France F-69622 ut, F-69622 Villeurbanne, France Ecole Cent Lyon, Lab Photocatalyse Catalyse & Environm, F-69131 Ecully, France Ecole Cent Lyon Ecully France F-69131 & Environm, F-69131 Ecully, France CNRS, Serv Cent Anal, F-69390 Vernaison, France CNRS Vernaison France F-69390 Serv Cent Anal, F-69390 Vernaison, France
Titolo Testata:
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
fascicolo: 1, volume: 141, anno: 2001,
pagine: 79 - 84
SICI:
1010-6030(20010615)141:1<79:PDOCIA>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
RING CLEAVAGE; CYANURIC ACID; ATRAZINE; BIODEGRADATION; HERBICIDES; MELAMINE; RESIDUES; PATHWAY;
Keywords:
cyromazine; titanium dioxide; photolysis; photodegradation; photocatalysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Faure, R Univ Lyon 1, Lab Instrumentat & Chim Analt Solut, Bat 305, F-69622 Villeurbanne, France Univ Lyon 1 Bat 305 Villeurbanne France F-69622 eurbanne, France
Citazione:
G. Goutailler et al., "Photocatalysed degradation of cyromazine in aqueous titanium dioxide suspensions: comparison with photolysis", J PHOTOCH A, 141(1), 2001, pp. 79-84

Abstract

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 organiccompounds 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, pyruvicand 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 stablein aqueous solution, (C) 2001 Elsevier Science B.V, All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 12:57:03