Artículo
Choline [amino acid] ionic liquid/water mixtures: A triple effect for the degradation of an organophosphorus pesticide
Pavez, Paulina; Figueroa, Roberto; Medina, Mayte; Millán, Daniela Andrea; Falcone, Ruben Dario
; Tapia, Ricardo
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
10/2020
Editorial:
American Chemical Society
Revista:
ACS Omega
ISSN:
2470-1343
e-ISSN:
2470-1343
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A series of ionic liquids (ILs) composed by choline (Ch) as a cation and different amino acids (AA) as anions and their respective aqueous mixtures were prepared using different [Ch][AA] contents in a range of 0.4-46 mol % IL. These solvents were used for the first time to achieve an eco-friendlier Paraoxon degradation. The results show that [Ch][AA]/water mixtures are an effective reaction medium to degrade Paraoxon, even when the IL content in the mixture is low (0.4 mol % IL) and without the need of an extra nucleophile. Both the kinetics and the degradation pathways of pesticides depend on the nature of the AA on [Ch][AA] and the amount of an IL present in the mixture. We have demonstrated that in those mixtures with a low amount of [Ch][AA], the hydrolysis reaction is the main pathway for Paraoxon degradation, showing a catalytic effect of the IL. However, as the percentage of [Ch][AA] increases in the mixture, the nucleophilic attack of [Ch][AA] is evident. Finally, the aim of this study was to provide evidence of a promising and biocompatible methodology to degrade a toxic compound (Paraoxon) using a minimal quantity of an IL designed totally from natural resources.
Palabras clave:
IONIC LIQUIDS
,
PESTICIDE
,
PARAOXON
,
DEGRADATION
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Licencia
Identificadores
Colecciones
Articulos (IDAS)
Articulos de INSTITUTO PARA EL DESARROLLO AGROINDUSTRIAL Y DE LA SALUD
Articulos de INSTITUTO PARA EL DESARROLLO AGROINDUSTRIAL Y DE LA SALUD
Citación
Pavez, Paulina; Figueroa, Roberto; Medina, Mayte; Millán, Daniela Andrea; Falcone, Ruben Dario; et al.; Choline [amino acid] ionic liquid/water mixtures: A triple effect for the degradation of an organophosphorus pesticide; American Chemical Society; ACS Omega; 5; 41; 10-2020; 26562-26572
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