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
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/81353
Ver los metadatos del registro completo
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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:UNLP2025-10-22T16:55:56Zoai: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:13292025-10-22 16:55:56.898SEDICI (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 |
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2016 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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http://sedici.unlp.edu.ar/handle/10915/81353 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/2161-489X info:eu-repo/semantics/altIdentifier/doi/10.4236/jsemat.2016.64017 |
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