Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction

Detalhes bibliográficos
Autor(a) principal: Zimmermann,B. M.
Data de Publicação: 2019
Outros Autores: Silvestri,S., Leichtweis,J., Dotto,G. L., Mallmann,E. S., Foletto,E. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000100147
Resumo: Abstract The objective of this work was to evaluate the degradation of rhodamine B dye from aqueous solution by photo-Fenton reaction under visible irradiation using a Fe-rich bentonite as a catalyst. The material was thermally treated at a low temperature (200 °C) and characterized by XRD, N2 adsorption-desorption isotherms, FTIR, SEM-EDS and XRF. Iron leaching in aqueous solution after the photo-Fenton reaction was evaluated by atomic absorption spectroscopy. The material exhibited a mesoporous structure, containing a specific surface area of 99 m2.g-1. The catalytic results showed significant dye degradation, reaching 95% of decolorization and 72% of mineralization at 300 min of reaction. The catalyst showed high chemical stability in four reaction cycles. Therefore, this thermally treated Fe-rich bentonite can be considered as a promising catalyst in the heterogeneous photo-Fenton reaction for the degradation of rhodamine B from aqueous solution.
id USP-29_5e7643b19c8c4973dd0ca915f059667e
oai_identifier_str oai:scielo:S0366-69132019000100147
network_acronym_str USP-29
network_name_str Cerâmica (São Paulo. Online)
repository_id_str
spelling Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reactionFe-rich bentonitecharacterizationphoto-Fentonrhodamine Bvisible lightAbstract The objective of this work was to evaluate the degradation of rhodamine B dye from aqueous solution by photo-Fenton reaction under visible irradiation using a Fe-rich bentonite as a catalyst. The material was thermally treated at a low temperature (200 °C) and characterized by XRD, N2 adsorption-desorption isotherms, FTIR, SEM-EDS and XRF. Iron leaching in aqueous solution after the photo-Fenton reaction was evaluated by atomic absorption spectroscopy. The material exhibited a mesoporous structure, containing a specific surface area of 99 m2.g-1. The catalytic results showed significant dye degradation, reaching 95% of decolorization and 72% of mineralization at 300 min of reaction. The catalyst showed high chemical stability in four reaction cycles. Therefore, this thermally treated Fe-rich bentonite can be considered as a promising catalyst in the heterogeneous photo-Fenton reaction for the degradation of rhodamine B from aqueous solution.Associação Brasileira de Cerâmica2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000100147Cerâmica v.65 n.373 2019reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132019653732521info:eu-repo/semantics/openAccessZimmermann,B. M.Silvestri,S.Leichtweis,J.Dotto,G. L.Mallmann,E. S.Foletto,E. L.eng2019-01-08T00:00:00Zoai:scielo:S0366-69132019000100147Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2019-01-08T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
title Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
spellingShingle Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
Zimmermann,B. M.
Fe-rich bentonite
characterization
photo-Fenton
rhodamine B
visible light
title_short Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
title_full Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
title_fullStr Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
title_full_unstemmed Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
title_sort Effect of thermal treatment on the catalytic activity of a Fe-rich bentonite for the photo-Fenton reaction
author Zimmermann,B. M.
author_facet Zimmermann,B. M.
Silvestri,S.
Leichtweis,J.
Dotto,G. L.
Mallmann,E. S.
Foletto,E. L.
author_role author
author2 Silvestri,S.
Leichtweis,J.
Dotto,G. L.
Mallmann,E. S.
Foletto,E. L.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Zimmermann,B. M.
Silvestri,S.
Leichtweis,J.
Dotto,G. L.
Mallmann,E. S.
Foletto,E. L.
dc.subject.por.fl_str_mv Fe-rich bentonite
characterization
photo-Fenton
rhodamine B
visible light
topic Fe-rich bentonite
characterization
photo-Fenton
rhodamine B
visible light
description Abstract The objective of this work was to evaluate the degradation of rhodamine B dye from aqueous solution by photo-Fenton reaction under visible irradiation using a Fe-rich bentonite as a catalyst. The material was thermally treated at a low temperature (200 °C) and characterized by XRD, N2 adsorption-desorption isotherms, FTIR, SEM-EDS and XRF. Iron leaching in aqueous solution after the photo-Fenton reaction was evaluated by atomic absorption spectroscopy. The material exhibited a mesoporous structure, containing a specific surface area of 99 m2.g-1. The catalytic results showed significant dye degradation, reaching 95% of decolorization and 72% of mineralization at 300 min of reaction. The catalyst showed high chemical stability in four reaction cycles. Therefore, this thermally treated Fe-rich bentonite can be considered as a promising catalyst in the heterogeneous photo-Fenton reaction for the degradation of rhodamine B from aqueous solution.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000100147
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000100147
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132019653732521
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.65 n.373 2019
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
_version_ 1748936784267444224

Registros relacionados