Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon

We investigated the adsorption to granular activated carbon of two pharmaceuticals (carbamazepine and sildenafil citrate) and a personal-care product (methylparaben) in aqueous solution, characterized the carbon, and evaluated its influence on the kinetics and adsorption equilibrium of the compounds...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Delgado Espinosa, Nasly Yanid, Capparelli, Alberto Luis, Marino, Damián José Gabriel, Navarro, Agustín F., Peñuela, Gustavo A., Ronco, Alicia Estela
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81353
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81353
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
spellingShingle Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
Delgado Espinosa, Nasly Yanid
Capparelli, Alberto Luis
Marino, Damián José Gabriel
Navarro, Agustín F.
Peñuela, Gustavo A.
Ronco, Alicia Estela
Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
topic_facet Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
description We investigated the adsorption to granular activated carbon of two pharmaceuticals (carbamazepine and sildenafil citrate) and a personal-care product (methylparaben) in aqueous solution, characterized the carbon, and evaluated its influence on the kinetics and adsorption equilibrium of the compounds under study. We adjusted data for the analysis of equilibrium to Langmuir and Freundlich models of adsorption isotherms and described adsorption rate using pseudo first- and second-order models; that same analysis was made on the basis of the behavior of the initial rate. In addition, we analyzed the potentiality of a nonlinear adjustment for studying kinetics and equilibrium of adsorption, an approach requiring neither knowledge of equilibrium conditions nor a-priori hypothetical suppositions regarding the order of reaction. The results indicated that the nonlinear model was capable of describing adsorption kinetic behavior, in order to determine concentrations adsorbed at equilibrium, adsorption rates of the system, maximum adsorption capacity, and global rate constant. Granular carbon exhibited an adsorption capacity for carbamazepine and methylparaben of ca. 323 mg/g and for sildenafil citrate of ca. 142 mg/g, though with slow adsorption kinetics characterized by average adsorption times of at least 168 h.
format Articulo
Articulo
author Delgado Espinosa, Nasly Yanid
Capparelli, Alberto Luis
Marino, Damián José Gabriel
Navarro, Agustín F.
Peñuela, Gustavo A.
Ronco, Alicia Estela
author_facet Delgado Espinosa, Nasly Yanid
Capparelli, Alberto Luis
Marino, Damián José Gabriel
Navarro, Agustín F.
Peñuela, Gustavo A.
Ronco, Alicia Estela
author_sort Delgado Espinosa, Nasly Yanid
title Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
title_short Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
title_full Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
title_fullStr Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
title_full_unstemmed Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
title_sort adsorption of pharmaceuticals and personal care products on granular activated carbon
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/81353
work_keys_str_mv AT delgadoespinosanaslyyanid adsorptionofpharmaceuticalsandpersonalcareproductsongranularactivatedcarbon
AT capparellialbertoluis adsorptionofpharmaceuticalsandpersonalcareproductsongranularactivatedcarbon
AT marinodamianjosegabriel adsorptionofpharmaceuticalsandpersonalcareproductsongranularactivatedcarbon
AT navarroagustinf adsorptionofpharmaceuticalsandpersonalcareproductsongranularactivatedcarbon
AT penuelagustavoa adsorptionofpharmaceuticalsandpersonalcareproductsongranularactivatedcarbon
AT roncoaliciaestela adsorptionofpharmaceuticalsandpersonalcareproductsongranularactivatedcarbon
bdutipo_str Repositorios
_version_ 1764820488017674241

Ejemplares similares