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Kinetic and mechanistic aspects of the direct photodegradation of atrazine, atr...
Azenha, M. E. D. G.; Burrows, H. D.; L., M. Canle; Coimbra, R.; Fernández, M. I.; García, M. V.; Peiteado, M. A.; Santaballa, J. A.Atrazine (1), Atraton (2) and Ametryn (3) are photodegraded upon 254 nm irradiation, yielding 2-OH-atrazine (4) as a photoproduct. Dealkylation products are also generated, and 4-ethylamino-6-isopropylamino-(1,3,5)-triazine was also found as a photoproduct of 3. The main photoreaction is proposed to be an addition-elimination, yielding 4, which subsequently photodegrades. The ease of photodegradation depends on...
Reaction pathways and mechanisms of photodegradation of pesticides
Burrows, H. D.; Canle L, M.; Santaballa, J. A.; Steenken, S.The photodegradation of pesticides is reviewed, with particular reference to the studies that describe the mechanisms of the processes involved, the nature of reactive intermediates and final products. Potential use of photochemical processes in advanced oxidation methods for water treatment is also discussed. Processes considered include direct photolysis leading to homolysis or heterolysis of the pesticide, p...
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