Artículo
Adsorption of bentazone and imazapyc from water by using functionalized silica: Experimental and computational analysis
Spaltro, Agustín
; Simonetti, Sandra Isabel
; Laurella, Sergio Luis
; Ruiz, Danila Luján
; Díaz Compañy, Andres Carlos Daniel; Juan, Alfredo
; Allegretti, Patricia
Fecha de publicación:
08/2019
Editorial:
Elsevier Science
Revista:
Journal of Contaminant Hydrology
ISSN:
0169-7722
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this study, silica and functionalized silica materials (3-aminopropyl and 3-mercapto derivatives) were successfully used for the removal of the pesticides bentazone and imazapyc from aqueous solutions. Adsorbent materials were characterized by BET isotherms and FT-IR spectroscopy (confirming the functionalization), and their equilibrium adsorption capacity was evaluated at different ionic strengths. It is observed that the maximum adsorption capacities decrease in the order 3-aminopropyl-derivative > silica >3-mercaptopropyl derivative. An increase in ionic strength produces an enhancement in the removal of pesticides. All isotherms are Ib-type and follow the Langmuir model, suggesting a monolayer physical adsorption process.
Palabras clave:
ADSORPTION
,
BENTAZONE
,
COMPUTATIONAL ANALYSIS
,
FUNCTIONALIZED SILICA
,
IMAZAPYC
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(IFISUR)
Articulos de INSTITUTO DE FISICA DEL SUR
Articulos de INSTITUTO DE FISICA DEL SUR
Citación
Spaltro, Agustín; Simonetti, Sandra Isabel; Laurella, Sergio Luis; Ruiz, Danila Luján; Díaz Compañy, Andres Carlos Daniel; et al.; Adsorption of bentazone and imazapyc from water by using functionalized silica: Experimental and computational analysis; Elsevier Science; Journal of Contaminant Hydrology; 227; 8-2019; 1-9
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