Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties

Autores
De León, María Andrea; Ortiz Rodríguez, Mayra Samanta; Marchetti, Sergio Gustavo; Sapag, Manuel Karim; Faccio Sgiorovello, Ricardo Juan; Sergio, Marta; Bussi, Juan
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A raw montmorillonite was exchanged with the trinuclear Fe(III) acetate complex and calcined at 400 °C. Ratios of 0.5, 1.0 and 3.5 mmol of complex per gram of clay were employed. The pillared solids (Fe-PILCs) were analyzed by X-ray fluorescence spectroscopy, thermogravimetry analysis, scanning electron microscopy, Mössbauer spectroscopy, X-ray diffraction and nitrogen adsorption isotherms. Total iron amount incorporated by the clay increases with the complex/clay ratio used from 6.1% to 17.6%. Iron is incorporated mainly in the interlayer space when the clay is pillared with the smallest complex/clay ratio and a microporous network is generated. Adsorption of iron on the outer surface is favored for higher iron loads and results in the creation of a mesoporous structure. Mössbauer analysis shows the presence of iron as maghemite (γ-Fe2O3) particles with a wide particle size distribution. All the Fe-PILCs were active as catalysts for phenol degradation under photo-Fenton like conditions using UVA radiation and a maximum in their activity is achieved for an intermediate iron content (13.4%).
Fil: De León, María Andrea. Universidad de la República; Uruguay
Fil: Ortiz Rodríguez, Mayra Samanta. Universidad de la República; Uruguay
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Aplicada; Argentina
Fil: Faccio Sgiorovello, Ricardo Juan. Universidad de la República; Uruguay
Fil: Sergio, Marta. Universidad de la República; Uruguay
Fil: Bussi, Juan. Universidad de la República; Uruguay
Materia
Fe-Pilc
Heterogeneous Photo-Fenton
Iron Content
Maghemite Particles
Phenol Degradation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/54331
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/54331
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic propertiesDe León, María AndreaOrtiz Rodríguez, Mayra SamantaMarchetti, Sergio GustavoSapag, Manuel KarimFaccio Sgiorovello, Ricardo JuanSergio, MartaBussi, JuanFe-PilcHeterogeneous Photo-FentonIron ContentMaghemite ParticlesPhenol Degradationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A raw montmorillonite was exchanged with the trinuclear Fe(III) acetate complex and calcined at 400 °C. Ratios of 0.5, 1.0 and 3.5 mmol of complex per gram of clay were employed. The pillared solids (Fe-PILCs) were analyzed by X-ray fluorescence spectroscopy, thermogravimetry analysis, scanning electron microscopy, Mössbauer spectroscopy, X-ray diffraction and nitrogen adsorption isotherms. Total iron amount incorporated by the clay increases with the complex/clay ratio used from 6.1% to 17.6%. Iron is incorporated mainly in the interlayer space when the clay is pillared with the smallest complex/clay ratio and a microporous network is generated. Adsorption of iron on the outer surface is favored for higher iron loads and results in the creation of a mesoporous structure. Mössbauer analysis shows the presence of iron as maghemite (γ-Fe2O3) particles with a wide particle size distribution. All the Fe-PILCs were active as catalysts for phenol degradation under photo-Fenton like conditions using UVA radiation and a maximum in their activity is achieved for an intermediate iron content (13.4%).Fil: De León, María Andrea. Universidad de la República; UruguayFil: Ortiz Rodríguez, Mayra Samanta. Universidad de la República; UruguayFil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Aplicada; ArgentinaFil: Faccio Sgiorovello, Ricardo Juan. Universidad de la República; UruguayFil: Sergio, Marta. Universidad de la República; UruguayFil: Bussi, Juan. Universidad de la República; UruguayElsevier2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54331De León, María Andrea; Ortiz Rodríguez, Mayra Samanta; Marchetti, Sergio Gustavo; Sapag, Manuel Karim; Faccio Sgiorovello, Ricardo Juan; et al.; Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties; Elsevier; Journal of Environmental Chemical Engineering; 5; 5; 10-2017; 4742-47502213-3437CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jece.2017.09.014info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2213343717304529info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:51:30Zoai:ri.conicet.gov.ar:11336/54331instacron: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:34982025-09-03 09:51:31.02CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
title Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
spellingShingle Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
De León, María Andrea
Fe-Pilc
Heterogeneous Photo-Fenton
Iron Content
Maghemite Particles
Phenol Degradation
title_short Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
title_full Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
title_fullStr Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
title_full_unstemmed Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
title_sort Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties
dc.creator.none.fl_str_mv De León, María Andrea
Ortiz Rodríguez, Mayra Samanta
Marchetti, Sergio Gustavo
Sapag, Manuel Karim
Faccio Sgiorovello, Ricardo Juan
Sergio, Marta
Bussi, Juan
author De León, María Andrea
author_facet De León, María Andrea
Ortiz Rodríguez, Mayra Samanta
Marchetti, Sergio Gustavo
Sapag, Manuel Karim
Faccio Sgiorovello, Ricardo Juan
Sergio, Marta
Bussi, Juan
author_role author
author2 Ortiz Rodríguez, Mayra Samanta
Marchetti, Sergio Gustavo
Sapag, Manuel Karim
Faccio Sgiorovello, Ricardo Juan
Sergio, Marta
Bussi, Juan
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Fe-Pilc
Heterogeneous Photo-Fenton
Iron Content
Maghemite Particles
Phenol Degradation
topic Fe-Pilc
Heterogeneous Photo-Fenton
Iron Content
Maghemite Particles
Phenol Degradation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A raw montmorillonite was exchanged with the trinuclear Fe(III) acetate complex and calcined at 400 °C. Ratios of 0.5, 1.0 and 3.5 mmol of complex per gram of clay were employed. The pillared solids (Fe-PILCs) were analyzed by X-ray fluorescence spectroscopy, thermogravimetry analysis, scanning electron microscopy, Mössbauer spectroscopy, X-ray diffraction and nitrogen adsorption isotherms. Total iron amount incorporated by the clay increases with the complex/clay ratio used from 6.1% to 17.6%. Iron is incorporated mainly in the interlayer space when the clay is pillared with the smallest complex/clay ratio and a microporous network is generated. Adsorption of iron on the outer surface is favored for higher iron loads and results in the creation of a mesoporous structure. Mössbauer analysis shows the presence of iron as maghemite (γ-Fe2O3) particles with a wide particle size distribution. All the Fe-PILCs were active as catalysts for phenol degradation under photo-Fenton like conditions using UVA radiation and a maximum in their activity is achieved for an intermediate iron content (13.4%).
Fil: De León, María Andrea. Universidad de la República; Uruguay
Fil: Ortiz Rodríguez, Mayra Samanta. Universidad de la República; Uruguay
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Aplicada; Argentina
Fil: Faccio Sgiorovello, Ricardo Juan. Universidad de la República; Uruguay
Fil: Sergio, Marta. Universidad de la República; Uruguay
Fil: Bussi, Juan. Universidad de la República; Uruguay
description A raw montmorillonite was exchanged with the trinuclear Fe(III) acetate complex and calcined at 400 °C. Ratios of 0.5, 1.0 and 3.5 mmol of complex per gram of clay were employed. The pillared solids (Fe-PILCs) were analyzed by X-ray fluorescence spectroscopy, thermogravimetry analysis, scanning electron microscopy, Mössbauer spectroscopy, X-ray diffraction and nitrogen adsorption isotherms. Total iron amount incorporated by the clay increases with the complex/clay ratio used from 6.1% to 17.6%. Iron is incorporated mainly in the interlayer space when the clay is pillared with the smallest complex/clay ratio and a microporous network is generated. Adsorption of iron on the outer surface is favored for higher iron loads and results in the creation of a mesoporous structure. Mössbauer analysis shows the presence of iron as maghemite (γ-Fe2O3) particles with a wide particle size distribution. All the Fe-PILCs were active as catalysts for phenol degradation under photo-Fenton like conditions using UVA radiation and a maximum in their activity is achieved for an intermediate iron content (13.4%).
publishDate 2017
dc.date.none.fl_str_mv 2017-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/54331
De León, María Andrea; Ortiz Rodríguez, Mayra Samanta; Marchetti, Sergio Gustavo; Sapag, Manuel Karim; Faccio Sgiorovello, Ricardo Juan; et al.; Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties; Elsevier; Journal of Environmental Chemical Engineering; 5; 5; 10-2017; 4742-4750
2213-3437
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54331
identifier_str_mv De León, María Andrea; Ortiz Rodríguez, Mayra Samanta; Marchetti, Sergio Gustavo; Sapag, Manuel Karim; Faccio Sgiorovello, Ricardo Juan; et al.; Raw montmorillonite modified with iron for photo-Fenton processes: Influence of iron content on textural, structural and catalytic properties; Elsevier; Journal of Environmental Chemical Engineering; 5; 5; 10-2017; 4742-4750
2213-3437
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jece.2017.09.014
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2213343717304529
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
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:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269098793238528
score 13.13397

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