Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media

The goals of this work were to prepare and characterize two functional materials, a natural montmorillonite (Mt) and a synthetic mica (Na-mica-4) were modified with the cationic octadecylamine by a cation-exchange reaction between obtained C₁₈-Mt and C₁₈-mica-4, and to explore their potential uses a...

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Autores: Martín Bueno, Julia, Orta Cuevas, María del Mar, Medina Carrasco, Santiago, Santos Morcillo, Juan Luis, Aparicio Gómez, Irene, Alonso Álvarez, Esteban
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/157305
Acesso em linha:https://hdl.handle.net/11441/157305
https://doi.org/10.1016/j.clay.2019.02.002
Access Level:acceso abierto
Palavra-chave:Ibuprofen
Adsorption
C₁₈-Montmorillonite
C₁₈-mica-4
Water samples
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spelling Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous mediaMartín Bueno, JuliaOrta Cuevas, María del MarMedina Carrasco, SantiagoSantos Morcillo, Juan LuisAparicio Gómez, IreneAlonso Álvarez, EstebanIbuprofenAdsorptionC₁₈-MontmorilloniteC₁₈-mica-4Water samplesThe goals of this work were to prepare and characterize two functional materials, a natural montmorillonite (Mt) and a synthetic mica (Na-mica-4) were modified with the cationic octadecylamine by a cation-exchange reaction between obtained C₁₈-Mt and C₁₈-mica-4, and to explore their potential uses as adsorbent of water containing emerging compounds such as ibuprofen. Both materials were characterized by X-ray diffraction (XRD), Zeta potential and thermogravimetric analysis (DSC-TG), before and after adsorption experiments. The incorporation of ibuprofen in the interlayer was demonstrated by XRD and on the external surface by Zeta potential. The adsorption equilibrium isotherm was fitted with the Langmuir, Freundlich and Dubinin-Radushkevitch mathematical models to obtain the respective parameters. Langmuir and Freundlich were the models that best fitted the experimental data (R² > 0.999). The adsorption rate of C₁₈-Mt (99.9%) was not dependent of ibuprofen concentration (0.1–80 mg/L) but it was in the case of C₁₈-mica-4 (from 99.9% at 0.1 mg/L to 67% at 80 mg/L). In addition, these values were not affected by sample pH in the range from 4 to 9. Kinetic of ibuprofen adsorption onto the organoclays was evaluated using pseudo-first-order, pseudo-second-order, intra-particle diffusion and Elovich models. Pseudo-second order was the kinetic model that best described the adsorption of ibuprofen (R² > 0.993) reaching the equilibrium time (up to 100% adsorbed) in <5 min and 60 min for C₁₈-Mt and C₁₈-mica-4, respectively. The mechanistic study confirmed the validity of these materials for the uptake of ibuprofen from water.CITIUS, central services of the Universidad de Sevilla (Spain)ElsevierQuímica AnalíticaFQM344: Análisis Químico Industrial y MedioambientalFQM410: Análisis Estructural y Composicional AplicadoMinisterio de Economia, Industria y Competitividad (MINECO). EspañaUniversidad de Sevilla2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/157305https://doi.org/10.1016/j.clay.2019.02.002reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésCTM2017-82778-RVI Plan Propio de Investigaciónhttps://www.sciencedirect.com/science/article/pii/S0169131719300328info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1573052026-06-17T12:51:07Z
dc.title.none.fl_str_mv Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
title Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
spellingShingle Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
Martín Bueno, Julia
Ibuprofen
Adsorption
C₁₈-Montmorillonite
C₁₈-mica-4
Water samples
title_short Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
title_full Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
title_fullStr Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
title_full_unstemmed Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
title_sort Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media
dc.creator.none.fl_str_mv Martín Bueno, Julia
Orta Cuevas, María del Mar
Medina Carrasco, Santiago
Santos Morcillo, Juan Luis
Aparicio Gómez, Irene
Alonso Álvarez, Esteban
author Martín Bueno, Julia
author_facet Martín Bueno, Julia
Orta Cuevas, María del Mar
Medina Carrasco, Santiago
Santos Morcillo, Juan Luis
Aparicio Gómez, Irene
Alonso Álvarez, Esteban
author_role author
author2 Orta Cuevas, María del Mar
Medina Carrasco, Santiago
Santos Morcillo, Juan Luis
Aparicio Gómez, Irene
Alonso Álvarez, Esteban
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Química Analítica
FQM344: Análisis Químico Industrial y Medioambiental
FQM410: Análisis Estructural y Composicional Aplicado
Ministerio de Economia, Industria y Competitividad (MINECO). España
Universidad de Sevilla
dc.subject.none.fl_str_mv Ibuprofen
Adsorption
C₁₈-Montmorillonite
C₁₈-mica-4
Water samples
topic Ibuprofen
Adsorption
C₁₈-Montmorillonite
C₁₈-mica-4
Water samples
description The goals of this work were to prepare and characterize two functional materials, a natural montmorillonite (Mt) and a synthetic mica (Na-mica-4) were modified with the cationic octadecylamine by a cation-exchange reaction between obtained C₁₈-Mt and C₁₈-mica-4, and to explore their potential uses as adsorbent of water containing emerging compounds such as ibuprofen. Both materials were characterized by X-ray diffraction (XRD), Zeta potential and thermogravimetric analysis (DSC-TG), before and after adsorption experiments. The incorporation of ibuprofen in the interlayer was demonstrated by XRD and on the external surface by Zeta potential. The adsorption equilibrium isotherm was fitted with the Langmuir, Freundlich and Dubinin-Radushkevitch mathematical models to obtain the respective parameters. Langmuir and Freundlich were the models that best fitted the experimental data (R² > 0.999). The adsorption rate of C₁₈-Mt (99.9%) was not dependent of ibuprofen concentration (0.1–80 mg/L) but it was in the case of C₁₈-mica-4 (from 99.9% at 0.1 mg/L to 67% at 80 mg/L). In addition, these values were not affected by sample pH in the range from 4 to 9. Kinetic of ibuprofen adsorption onto the organoclays was evaluated using pseudo-first-order, pseudo-second-order, intra-particle diffusion and Elovich models. Pseudo-second order was the kinetic model that best described the adsorption of ibuprofen (R² > 0.993) reaching the equilibrium time (up to 100% adsorbed) in <5 min and 60 min for C₁₈-Mt and C₁₈-mica-4, respectively. The mechanistic study confirmed the validity of these materials for the uptake of ibuprofen from water.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/157305
https://doi.org/10.1016/j.clay.2019.02.002
url https://hdl.handle.net/11441/157305
https://doi.org/10.1016/j.clay.2019.02.002
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv CTM2017-82778-R
VI Plan Propio de Investigación
https://www.sciencedirect.com/science/article/pii/S0169131719300328
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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