Adsorption of Pesticides on Activated Carbons from Peach Stones

This study analyzes the adsorption of two model pesticides, namely, 2,4-dichlorophenoxyacetic acid (2,4-D) and carbofuran on activated carbons obtained by chemical activation with phosphoric acid of peach stones. The effect of the synthesis conditions on the surface area development was analyzed. Th...

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Autores: Harabi, Souha, Guiza, Sami, Álvarez Montero, Ariadna, Gómez Avilés, Almudena, Bagané, Mohamed, Belver Coldeira, Carolina, Bedia García-Matamoros, Jorge
Formato: artículo
Fecha de publicación:2024
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/716929
Acesso em linha:http://hdl.handle.net/10486/716929
https://dx.doi.org/10.3390/pr12010238
Access Level:acceso abierto
Palavra-chave:2,4-dichlorophenoxyacetic acid
activated carbon
adsorption
carbofuran
isotherms
kinetics
pesticides
Química
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spelling Adsorption of Pesticides on Activated Carbons from Peach StonesHarabi, SouhaGuiza, SamiÁlvarez Montero, AriadnaGómez Avilés, AlmudenaBagané, MohamedBelver Coldeira, CarolinaBedia García-Matamoros, Jorge2,4-dichlorophenoxyacetic acidactivated carbonadsorptioncarbofuranisothermskineticspesticidesQuímicaThis study analyzes the adsorption of two model pesticides, namely, 2,4-dichlorophenoxyacetic acid (2,4-D) and carbofuran on activated carbons obtained by chemical activation with phosphoric acid of peach stones. The effect of the synthesis conditions on the surface area development was analyzed. The highest surface area was obtained with an impregnation time of 5 h, an impregnation ratio equal to 3.5, an activation temperature of 400 °C, and 4.5 h of activation time. Under these conditions, the maximum specific surface area was equal to 1182 m2·g−1 which confirms the high porosity of the activated carbon, predominantly in the form of micropores. The surface chemistry of this activated carbon was also characterized using pH at point of zero charge, scanning electron microscopy, and Fourier transform infrared spectroscopy. Both kinetics and equilibrium adsorption tests were performed. Adsorption kinetics confirmed that 2,4-D adsorption follows a pseudo first-order adsorption kinetic model, while carbofuran adsorption is better described by a pseudo second-order one. Regarding the equilibrium adsorption, a higher adsorption capacity is obtained for 2,4-D than carbofuran (c.a. 500 and 250 mg·g−1, respectively). The analysis of the thermodynamics and characterization after use suggest a predominantly physisorption nature of the processThis research was funded by the Spanish “Agencia Estatal de Investigación” from “Ministerio de Ciencia e Innovación” proyect number TED2021-129948B-I00Multidisciplinary Digital Publishing Institute (MDPI)Departamento de Ingeniería QuímicaFacultad de CienciasUAM. Departamento de Ingeniería Química20242024-01-22research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/716929https://dx.doi.org/10.3390/pr12010238reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7169292026-06-23T12:46:27Z
dc.title.none.fl_str_mv Adsorption of Pesticides on Activated Carbons from Peach Stones
title Adsorption of Pesticides on Activated Carbons from Peach Stones
spellingShingle Adsorption of Pesticides on Activated Carbons from Peach Stones
Harabi, Souha
2,4-dichlorophenoxyacetic acid
activated carbon
adsorption
carbofuran
isotherms
kinetics
pesticides
Química
title_short Adsorption of Pesticides on Activated Carbons from Peach Stones
title_full Adsorption of Pesticides on Activated Carbons from Peach Stones
title_fullStr Adsorption of Pesticides on Activated Carbons from Peach Stones
title_full_unstemmed Adsorption of Pesticides on Activated Carbons from Peach Stones
title_sort Adsorption of Pesticides on Activated Carbons from Peach Stones
dc.creator.none.fl_str_mv Harabi, Souha
Guiza, Sami
Álvarez Montero, Ariadna
Gómez Avilés, Almudena
Bagané, Mohamed
Belver Coldeira, Carolina
Bedia García-Matamoros, Jorge
author Harabi, Souha
author_facet Harabi, Souha
Guiza, Sami
Álvarez Montero, Ariadna
Gómez Avilés, Almudena
Bagané, Mohamed
Belver Coldeira, Carolina
Bedia García-Matamoros, Jorge
author_role author
author2 Guiza, Sami
Álvarez Montero, Ariadna
Gómez Avilés, Almudena
Bagané, Mohamed
Belver Coldeira, Carolina
Bedia García-Matamoros, Jorge
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Química
Facultad de Ciencias
UAM. Departamento de Ingeniería Química
dc.subject.none.fl_str_mv 2,4-dichlorophenoxyacetic acid
activated carbon
adsorption
carbofuran
isotherms
kinetics
pesticides
Química
topic 2,4-dichlorophenoxyacetic acid
activated carbon
adsorption
carbofuran
isotherms
kinetics
pesticides
Química
description This study analyzes the adsorption of two model pesticides, namely, 2,4-dichlorophenoxyacetic acid (2,4-D) and carbofuran on activated carbons obtained by chemical activation with phosphoric acid of peach stones. The effect of the synthesis conditions on the surface area development was analyzed. The highest surface area was obtained with an impregnation time of 5 h, an impregnation ratio equal to 3.5, an activation temperature of 400 °C, and 4.5 h of activation time. Under these conditions, the maximum specific surface area was equal to 1182 m2·g−1 which confirms the high porosity of the activated carbon, predominantly in the form of micropores. The surface chemistry of this activated carbon was also characterized using pH at point of zero charge, scanning electron microscopy, and Fourier transform infrared spectroscopy. Both kinetics and equilibrium adsorption tests were performed. Adsorption kinetics confirmed that 2,4-D adsorption follows a pseudo first-order adsorption kinetic model, while carbofuran adsorption is better described by a pseudo second-order one. Regarding the equilibrium adsorption, a higher adsorption capacity is obtained for 2,4-D than carbofuran (c.a. 500 and 250 mg·g−1, respectively). The analysis of the thermodynamics and characterization after use suggest a predominantly physisorption nature of the process
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-01-22
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/716929
https://dx.doi.org/10.3390/pr12010238
url http://hdl.handle.net/10486/716929
https://dx.doi.org/10.3390/pr12010238
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414175878414336
score 15.811543

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