Artículo
Adsorption of bentazon on CAT and CARBOPAL activated carbon: Experimental and computational study
Spaltro, Agustín
; Simonetti, Sandra Isabel
; Alvarez Torrellas, Silvia; García Rodriguez, Juan; Ruiz, Danila Luján
; Juan, Alfredo
; Allegretti, Patricia Ercilia
Fecha de publicación:
01/03/2018
Editorial:
Elsevier Science
Revista:
Applied Surface Science
ISSN:
0169-4332
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Removal of the bentazon by adsorption on two different types of activated carbon was investigated under various experimental conditions.Kinetics of adsorption is followed and the adsorption isotherms of the pesticide are determined. The effects of the changes in pH, ionic strength and temperature are analyzed. Computational simulation was employed to analyze the geometry and the energy of pesticide absorption on activated carbon. Concentration of bentazon decreases while increase all the variables, from the same initial concentration. Experimental data for equilibrium was analyzed by three models: Langmuir, Freundlich and Guggenheim–Anderson–de Boer isotherms. Pseudo-first and pseudo-second-order kinetics are tested with the experimental data, and pseudo-second-order kinetics was the best for the adsorption of bentazon by CAT and CARBOPAL with coefficients of correlation R 2 = 0.9996 and R 2 = 0.9993, respectively. The results indicated that both CAT and CARBOPAL are very effective for the adsorption of bentazon from aqueous solutions, but CAT carbon has the greater capacity.
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; Alvarez Torrellas, Silvia; García Rodriguez, Juan; Ruiz, Danila Luján; et al.; Adsorption of bentazon on CAT and CARBOPAL activated carbon: Experimental and computational study; Elsevier Science; Applied Surface Science; 433; 1-3-2018; 487-501
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