Sorption of apolar pesticides by units of benzoic acid propyl ester in cyclic phosphazene
Cargando...
Archivos
Fecha
2017
Autores
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
Sociedad Chilena de Quimica
Nombre de Curso
Licencia CC
Licencia CC
Resumen
The effects of temperature, pH and agitation time (equilibrium) on the adsorption process of different pesticides on N3P3(OC6H4COOCH2CH2CH3)6 was studied. With optimal conditions experimental, the adsorption isotherms have been realized with through Langmuir and Freundlich models. Pesticides are compounds used mainly in agriculture to control various species (plants, insects, worms, fungi). Due to their physicochemical properties, they can remain for a long time in the application sites, bioaccumulating and moving between environmental compartments which generate various environmental problems. The results obtained showed a physisorption mechanism for the fve pesticides studied, with higher sorption for: azinphos methyl (93,5 mg kg-1), carbaryl (290.5 mg kg-1) and carbofuran (580.5 mg kg-1) at 20 ° C, according to the models used. © 2018 Sociedad Chilena de Quimica. All rights reserved.
Notas
Indexación: Scopus.
Palabras clave
Cyclic phosphazene, Pesticides, Sorption
Citación
Journal of the Chilean Chemical Society, 62(4), pp. 3783-3787.