The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites
- Autores
- Burbano Patiño, Aura Alejandra; Lassalle, Verónica Leticia; Horst, María Fernanda; Gascó, Gabriel; Méndez, Ana María
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Arsenic pollution has emerged through anthropogenic activities and natural mineral leaching processes. This study aims to advance the use of magnetic carbon nanocomposites (MCNs) in the sorption of arsenic, studying the infuence of feedstock and the presence of carbon coating on magnetic nanoparticles. Previous works have shown that post-pyrolysis treatment improves the stability of MCNs by reducing iron leaching due to the formation of a carbon coating that encapsulates the iron oxide nanoparticles. However, this carbon coating could infuence the adsorption properties of MCNs. This investigation deals with arsenic adsorption by four MCNs prepared by co-precipitation of magnetite (Fe3O4) nanoparticle into four carbonaceous matrixes, followed by a post-pyrolysis treatment. The pristine carbonaceous matrixes used in the present work were commercial activated carbon (CAC), charcoal (CC), hydrochar from the orange residue (HCOR), and biochar from sunfower husk (BCSFH). Pristine carbonaceous materials and MCNs without post-pyrolyzed were also used as arsenic sorbents in water solutions. Additionally, kinetic studies were carried out to explore the sorption properties of diferent MCNs and pristine materials, concerning the removal efciencies (expressed as a percentage) and adsorption capacities, determining the equilibrium time. The results demonstrated that the presence of magnetite increases the adsorption of arsenic, being higher in the case of materials obtained by direct co-precipitation than in materials subjected to a post-pyrolysis process. The presence of a carbon layerprotecting the magnetite slightly decreases the adsorption of arsenic.
Fil: Burbano Patiño, Aura Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Lassalle, Verónica Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Horst, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Gascó, Gabriel. Universidad Politécnica de Madrid; España
Fil: Méndez, Ana María. Universidad Politécnica de Madrid; España - Materia
-
BIOCHAR
CARBON NANOCOMPOSITE
HYDROCHAR
MAGNETIC MATERIALS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/262009
Ver los metadatos del registro completo
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The efect of carbon coating on the arsenite sorption by magnetic carbon nanocompositesBurbano Patiño, Aura AlejandraLassalle, Verónica LeticiaHorst, María FernandaGascó, GabrielMéndez, Ana MaríaBIOCHARCARBON NANOCOMPOSITEHYDROCHARMAGNETIC MATERIALShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Arsenic pollution has emerged through anthropogenic activities and natural mineral leaching processes. This study aims to advance the use of magnetic carbon nanocomposites (MCNs) in the sorption of arsenic, studying the infuence of feedstock and the presence of carbon coating on magnetic nanoparticles. Previous works have shown that post-pyrolysis treatment improves the stability of MCNs by reducing iron leaching due to the formation of a carbon coating that encapsulates the iron oxide nanoparticles. However, this carbon coating could infuence the adsorption properties of MCNs. This investigation deals with arsenic adsorption by four MCNs prepared by co-precipitation of magnetite (Fe3O4) nanoparticle into four carbonaceous matrixes, followed by a post-pyrolysis treatment. The pristine carbonaceous matrixes used in the present work were commercial activated carbon (CAC), charcoal (CC), hydrochar from the orange residue (HCOR), and biochar from sunfower husk (BCSFH). Pristine carbonaceous materials and MCNs without post-pyrolyzed were also used as arsenic sorbents in water solutions. Additionally, kinetic studies were carried out to explore the sorption properties of diferent MCNs and pristine materials, concerning the removal efciencies (expressed as a percentage) and adsorption capacities, determining the equilibrium time. The results demonstrated that the presence of magnetite increases the adsorption of arsenic, being higher in the case of materials obtained by direct co-precipitation than in materials subjected to a post-pyrolysis process. The presence of a carbon layerprotecting the magnetite slightly decreases the adsorption of arsenic.Fil: Burbano Patiño, Aura Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Lassalle, Verónica Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Horst, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Gascó, Gabriel. Universidad Politécnica de Madrid; EspañaFil: Méndez, Ana María. Universidad Politécnica de Madrid; EspañaCtr Environment & Energy Research & Studies2024-08-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/262009Burbano Patiño, Aura Alejandra; Lassalle, Verónica Leticia; Horst, María Fernanda; Gascó, Gabriel; Méndez, Ana María; The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites; Ctr Environment & Energy Research & Studies; International Journal of Environmental Science and Technology; 22; 6; 5-8-2024; 4749-47601735-1472CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s13762-024-05924-xinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s13762-024-05924-xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:44Zoai:ri.conicet.gov.ar:11336/262009instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:22:44.907CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| title |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| spellingShingle |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites Burbano Patiño, Aura Alejandra BIOCHAR CARBON NANOCOMPOSITE HYDROCHAR MAGNETIC MATERIALS |
| title_short |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| title_full |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| title_fullStr |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| title_full_unstemmed |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| title_sort |
The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites |
| dc.creator.none.fl_str_mv |
Burbano Patiño, Aura Alejandra Lassalle, Verónica Leticia Horst, María Fernanda Gascó, Gabriel Méndez, Ana María |
| author |
Burbano Patiño, Aura Alejandra |
| author_facet |
Burbano Patiño, Aura Alejandra Lassalle, Verónica Leticia Horst, María Fernanda Gascó, Gabriel Méndez, Ana María |
| author_role |
author |
| author2 |
Lassalle, Verónica Leticia Horst, María Fernanda Gascó, Gabriel Méndez, Ana María |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
BIOCHAR CARBON NANOCOMPOSITE HYDROCHAR MAGNETIC MATERIALS |
| topic |
BIOCHAR CARBON NANOCOMPOSITE HYDROCHAR MAGNETIC MATERIALS |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
Arsenic pollution has emerged through anthropogenic activities and natural mineral leaching processes. This study aims to advance the use of magnetic carbon nanocomposites (MCNs) in the sorption of arsenic, studying the infuence of feedstock and the presence of carbon coating on magnetic nanoparticles. Previous works have shown that post-pyrolysis treatment improves the stability of MCNs by reducing iron leaching due to the formation of a carbon coating that encapsulates the iron oxide nanoparticles. However, this carbon coating could infuence the adsorption properties of MCNs. This investigation deals with arsenic adsorption by four MCNs prepared by co-precipitation of magnetite (Fe3O4) nanoparticle into four carbonaceous matrixes, followed by a post-pyrolysis treatment. The pristine carbonaceous matrixes used in the present work were commercial activated carbon (CAC), charcoal (CC), hydrochar from the orange residue (HCOR), and biochar from sunfower husk (BCSFH). Pristine carbonaceous materials and MCNs without post-pyrolyzed were also used as arsenic sorbents in water solutions. Additionally, kinetic studies were carried out to explore the sorption properties of diferent MCNs and pristine materials, concerning the removal efciencies (expressed as a percentage) and adsorption capacities, determining the equilibrium time. The results demonstrated that the presence of magnetite increases the adsorption of arsenic, being higher in the case of materials obtained by direct co-precipitation than in materials subjected to a post-pyrolysis process. The presence of a carbon layerprotecting the magnetite slightly decreases the adsorption of arsenic. Fil: Burbano Patiño, Aura Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Lassalle, Verónica Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Horst, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Gascó, Gabriel. Universidad Politécnica de Madrid; España Fil: Méndez, Ana María. Universidad Politécnica de Madrid; España |
| description |
Arsenic pollution has emerged through anthropogenic activities and natural mineral leaching processes. This study aims to advance the use of magnetic carbon nanocomposites (MCNs) in the sorption of arsenic, studying the infuence of feedstock and the presence of carbon coating on magnetic nanoparticles. Previous works have shown that post-pyrolysis treatment improves the stability of MCNs by reducing iron leaching due to the formation of a carbon coating that encapsulates the iron oxide nanoparticles. However, this carbon coating could infuence the adsorption properties of MCNs. This investigation deals with arsenic adsorption by four MCNs prepared by co-precipitation of magnetite (Fe3O4) nanoparticle into four carbonaceous matrixes, followed by a post-pyrolysis treatment. The pristine carbonaceous matrixes used in the present work were commercial activated carbon (CAC), charcoal (CC), hydrochar from the orange residue (HCOR), and biochar from sunfower husk (BCSFH). Pristine carbonaceous materials and MCNs without post-pyrolyzed were also used as arsenic sorbents in water solutions. Additionally, kinetic studies were carried out to explore the sorption properties of diferent MCNs and pristine materials, concerning the removal efciencies (expressed as a percentage) and adsorption capacities, determining the equilibrium time. The results demonstrated that the presence of magnetite increases the adsorption of arsenic, being higher in the case of materials obtained by direct co-precipitation than in materials subjected to a post-pyrolysis process. The presence of a carbon layerprotecting the magnetite slightly decreases the adsorption of arsenic. |
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2024 |
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2024-08-05 |
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article |
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http://hdl.handle.net/11336/262009 Burbano Patiño, Aura Alejandra; Lassalle, Verónica Leticia; Horst, María Fernanda; Gascó, Gabriel; Méndez, Ana María; The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites; Ctr Environment & Energy Research & Studies; International Journal of Environmental Science and Technology; 22; 6; 5-8-2024; 4749-4760 1735-1472 CONICET Digital CONICET |
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Burbano Patiño, Aura Alejandra; Lassalle, Verónica Leticia; Horst, María Fernanda; Gascó, Gabriel; Méndez, Ana María; The efect of carbon coating on the arsenite sorption by magnetic carbon nanocomposites; Ctr Environment & Energy Research & Studies; International Journal of Environmental Science and Technology; 22; 6; 5-8-2024; 4749-4760 1735-1472 CONICET Digital CONICET |
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eng |
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