Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue

Autores
Castro, Cínthia S.; Guerreiro, Mário César; Oliveira, Luiz C. A.; Gonçalves, Maraisa; Anastácio, Alexandre; Nazzarro, Marcelo Sandro
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work materials based on iron oxide dispersed over activated carbon were prepared and tested in the H2O2 decomposition and removal of the methylene blue (MB) model from aqueous solution. Two different supports were evaluated: a commercial activated carbon (CAC) and an activated carbon produced by coffee used grounds (ACK). These materials, after iron impregnation (CAC/Fe and ACK/Fe), were characterized using XRD, SEM, N2-sorption, XPS and Mössbauer spectroscopy. The main results suggest the formation of composites with high surface area and iron dispersion containing Fe3+ on the surface of both catalysts. Catalytic tests revealed high capacity for H2O2 decomposition by both composites with more activity for ACK/Fe. MB removal experiments showed intense removal of the model through combined adsorption and oxidation processes. The detection of known MB oxidation intermediates observed by ESI-MS studies confirmed the occurrence of MB oxidation processes and also showed more activity for ACK/Fe.
Fil: Castro, Cínthia S.. Universidad Federal de Lavras; Brasil
Fil: Guerreiro, Mário César. Universidad Federal de Lavras; Brasil
Fil: Oliveira, Luiz C. A.. Universidad Federal de Lavras; Brasil
Fil: Gonçalves, Maraisa. Universidad de Alicante; España
Fil: Anastácio, Alexandre. Universidad Federal de Lavras; Brasil
Fil: Nazzarro, Marcelo Sandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Materia
ACTIVATED CARBON
HETEROGENEOUS FENTON PROCESS
IRON OXIDE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/125681
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blueCastro, Cínthia S.Guerreiro, Mário CésarOliveira, Luiz C. A.Gonçalves, MaraisaAnastácio, AlexandreNazzarro, Marcelo SandroACTIVATED CARBONHETEROGENEOUS FENTON PROCESSIRON OXIDEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work materials based on iron oxide dispersed over activated carbon were prepared and tested in the H2O2 decomposition and removal of the methylene blue (MB) model from aqueous solution. Two different supports were evaluated: a commercial activated carbon (CAC) and an activated carbon produced by coffee used grounds (ACK). These materials, after iron impregnation (CAC/Fe and ACK/Fe), were characterized using XRD, SEM, N2-sorption, XPS and Mössbauer spectroscopy. The main results suggest the formation of composites with high surface area and iron dispersion containing Fe3+ on the surface of both catalysts. Catalytic tests revealed high capacity for H2O2 decomposition by both composites with more activity for ACK/Fe. MB removal experiments showed intense removal of the model through combined adsorption and oxidation processes. The detection of known MB oxidation intermediates observed by ESI-MS studies confirmed the occurrence of MB oxidation processes and also showed more activity for ACK/Fe.Fil: Castro, Cínthia S.. Universidad Federal de Lavras; BrasilFil: Guerreiro, Mário César. Universidad Federal de Lavras; BrasilFil: Oliveira, Luiz C. A.. Universidad Federal de Lavras; BrasilFil: Gonçalves, Maraisa. Universidad de Alicante; EspañaFil: Anastácio, Alexandre. Universidad Federal de Lavras; BrasilFil: Nazzarro, Marcelo Sandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaElsevier Science2009-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125681Castro, Cínthia S.; Guerreiro, Mário César; Oliveira, Luiz C. A.; Gonçalves, Maraisa; Anastácio, Alexandre; et al.; Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue; Elsevier Science; Applied Catalysis A: General; 367; 1-2; 1-10-2009; 53-580926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0926860X09005298info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2009.07.032info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:17:08Zoai:ri.conicet.gov.ar:11336/125681instacron: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:34982025-09-10 13:17:09.107CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
title Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
spellingShingle Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
Castro, Cínthia S.
ACTIVATED CARBON
HETEROGENEOUS FENTON PROCESS
IRON OXIDE
title_short Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
title_full Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
title_fullStr Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
title_full_unstemmed Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
title_sort Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue
dc.creator.none.fl_str_mv Castro, Cínthia S.
Guerreiro, Mário César
Oliveira, Luiz C. A.
Gonçalves, Maraisa
Anastácio, Alexandre
Nazzarro, Marcelo Sandro
author Castro, Cínthia S.
author_facet Castro, Cínthia S.
Guerreiro, Mário César
Oliveira, Luiz C. A.
Gonçalves, Maraisa
Anastácio, Alexandre
Nazzarro, Marcelo Sandro
author_role author
author2 Guerreiro, Mário César
Oliveira, Luiz C. A.
Gonçalves, Maraisa
Anastácio, Alexandre
Nazzarro, Marcelo Sandro
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv ACTIVATED CARBON
HETEROGENEOUS FENTON PROCESS
IRON OXIDE
topic ACTIVATED CARBON
HETEROGENEOUS FENTON PROCESS
IRON OXIDE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work materials based on iron oxide dispersed over activated carbon were prepared and tested in the H2O2 decomposition and removal of the methylene blue (MB) model from aqueous solution. Two different supports were evaluated: a commercial activated carbon (CAC) and an activated carbon produced by coffee used grounds (ACK). These materials, after iron impregnation (CAC/Fe and ACK/Fe), were characterized using XRD, SEM, N2-sorption, XPS and Mössbauer spectroscopy. The main results suggest the formation of composites with high surface area and iron dispersion containing Fe3+ on the surface of both catalysts. Catalytic tests revealed high capacity for H2O2 decomposition by both composites with more activity for ACK/Fe. MB removal experiments showed intense removal of the model through combined adsorption and oxidation processes. The detection of known MB oxidation intermediates observed by ESI-MS studies confirmed the occurrence of MB oxidation processes and also showed more activity for ACK/Fe.
Fil: Castro, Cínthia S.. Universidad Federal de Lavras; Brasil
Fil: Guerreiro, Mário César. Universidad Federal de Lavras; Brasil
Fil: Oliveira, Luiz C. A.. Universidad Federal de Lavras; Brasil
Fil: Gonçalves, Maraisa. Universidad de Alicante; España
Fil: Anastácio, Alexandre. Universidad Federal de Lavras; Brasil
Fil: Nazzarro, Marcelo Sandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
description In this work materials based on iron oxide dispersed over activated carbon were prepared and tested in the H2O2 decomposition and removal of the methylene blue (MB) model from aqueous solution. Two different supports were evaluated: a commercial activated carbon (CAC) and an activated carbon produced by coffee used grounds (ACK). These materials, after iron impregnation (CAC/Fe and ACK/Fe), were characterized using XRD, SEM, N2-sorption, XPS and Mössbauer spectroscopy. The main results suggest the formation of composites with high surface area and iron dispersion containing Fe3+ on the surface of both catalysts. Catalytic tests revealed high capacity for H2O2 decomposition by both composites with more activity for ACK/Fe. MB removal experiments showed intense removal of the model through combined adsorption and oxidation processes. The detection of known MB oxidation intermediates observed by ESI-MS studies confirmed the occurrence of MB oxidation processes and also showed more activity for ACK/Fe.
publishDate 2009
dc.date.none.fl_str_mv 2009-10-01
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/11336/125681
Castro, Cínthia S.; Guerreiro, Mário César; Oliveira, Luiz C. A.; Gonçalves, Maraisa; Anastácio, Alexandre; et al.; Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue; Elsevier Science; Applied Catalysis A: General; 367; 1-2; 1-10-2009; 53-58
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125681
identifier_str_mv Castro, Cínthia S.; Guerreiro, Mário César; Oliveira, Luiz C. A.; Gonçalves, Maraisa; Anastácio, Alexandre; et al.; Iron oxide dispersed over activated carbon: Support influence on the oxidation of the model molecule methylene blue; Elsevier Science; Applied Catalysis A: General; 367; 1-2; 1-10-2009; 53-58
0926-860X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0926860X09005298
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2009.07.032
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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_ 1842980937690775552
score 12.993085

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