Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon

Autores
Delgado Espinosa, Nasly Yanid; Capparelli, Alberto Luis; Marino, Damián José Gabriel; Navarro, Agustín F.; Peñuela, Gustavo A.; Ronco, Alicia Estela
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Facultad de Ciencias Exactas
Facultad de Ingeniería (FI)
Materia
Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/81353
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/81353
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated CarbonDelgado Espinosa, Nasly YanidCapparelli, Alberto LuisMarino, Damián José GabrielNavarro, Agustín F.Peñuela, Gustavo A.Ronco, Alicia EstelaQuímicaactivated carboncarbamazepinesildenafil citratemethylparabenadsorptionWe 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.Facultad de Ciencias ExactasFacultad de Ingeniería (FI)2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf183-200http://sedici.unlp.edu.ar/handle/10915/81353enginfo:eu-repo/semantics/altIdentifier/issn/2161-489Xinfo:eu-repo/semantics/altIdentifier/doi/10.4236/jsemat.2016.64017info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:07Zoai:sedici.unlp.edu.ar:10915/81353Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:07.597SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
title Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
spellingShingle Adsorption of Pharmaceuticals and Personal Care Products on Granular Activated Carbon
Delgado Espinosa, Nasly Yanid
Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
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
dc.creator.none.fl_str_mv Delgado Espinosa, Nasly Yanid
Capparelli, Alberto Luis
Marino, Damián José Gabriel
Navarro, Agustín F.
Peñuela, Gustavo A.
Ronco, Alicia Estela
author Delgado Espinosa, Nasly Yanid
author_facet Delgado Espinosa, Nasly Yanid
Capparelli, Alberto Luis
Marino, Damián José Gabriel
Navarro, Agustín F.
Peñuela, Gustavo A.
Ronco, Alicia Estela
author_role author
author2 Capparelli, Alberto Luis
Marino, Damián José Gabriel
Navarro, Agustín F.
Peñuela, Gustavo A.
Ronco, Alicia Estela
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
topic Química
activated carbon
carbamazepine
sildenafil citrate
methylparaben
adsorption
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Exactas
Facultad de Ingeniería (FI)
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.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/81353
url http://sedici.unlp.edu.ar/handle/10915/81353
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2161-489X
info:eu-repo/semantics/altIdentifier/doi/10.4236/jsemat.2016.64017
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
183-200
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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