Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water

The aim of this study is to investigate the possibility of using cerium oxide (CeO₂) nanoparticles (NPs) attached to reduced graphene oxide (rGO) as an alternative adsorbent for cadmium (II), lead (II) and chromium (VI) removal from aqueous solution. The new nanomaterials (CeO₂/rGO) were obtained fo...

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Autores: Contreras Rodríguez, Ada Rebeca, McCarthy, Joseph E., Alonso González, Amanda|||0000-0002-5749-7631, Moral-Vico, Javier|||0000-0002-6795-3450, Font, Xavier|||0000-0003-4981-7436, Guńko, Yurii K., Sánchez, Antoni|||0000-0003-4254-8528
Formato: artículo
Fecha de publicación:2018
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:196254
Acesso em linha:https://ddd.uab.cat/record/196254
https://dx.doi.org/urn:doi:10.5004/dwt.2018.22735
Access Level:acceso abierto
Palavra-chave:Cerium oxide nanoparticle
In-situ growth
Self-assembly
Graphene oxide
Heavy met
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spelling Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in waterContreras Rodríguez, Ada RebecaMcCarthy, Joseph E.Alonso González, Amanda|||0000-0002-5749-7631Moral-Vico, Javier|||0000-0002-6795-3450Font, Xavier|||0000-0003-4981-7436Guńko, Yurii K.Sánchez, Antoni|||0000-0003-4254-8528Cerium oxide nanoparticleIn-situ growthSelf-assemblyGraphene oxideHeavy metThe aim of this study is to investigate the possibility of using cerium oxide (CeO₂) nanoparticles (NPs) attached to reduced graphene oxide (rGO) as an alternative adsorbent for cadmium (II), lead (II) and chromium (VI) removal from aqueous solution. The new nanomaterials (CeO₂/rGO) were obtained following two different strategies, in-situ growth and self-assembly approach. The adsorption capacities for each heavy metal were investigated at a fixed pH (5.5-6), a range concentration of heavy metal from 5 to 250 mg/L and a fixed concentration of 0.05 mg of CeO₂/rGO nanomaterial. The experimental data were fitted using the Langmuir, Freundlich and Temkin isotherms models. The experimental data of each nanomaterial for the removal of Pb(II) were approximated best by the Langmuir model, while for the removal of Cd(II) Langmuir and Freundlich showed good regression coefficients. The study showed that CeO2 NPs attached to rGO could be used as an efficient adsorbent material for the adsorption of cadmium and lead from aqueous solution. The nanomaterial obtained by in-situ growth registered the highest adsorption capacity for the removal of lead (95.75 mg Pb²⁺/gCeO₂/rGO-HMT), while in the case of cadmium the highest adsorption was obtained with the nanomaterial synthesized following the self-assembly approach (31.26 mg Cd²⁺/g CeO₂/rGO-AM). 22018-01-0120182018-01-01Articlehttp://purl.org/coar/resource_type/c_6501SMURhttp://purl.org/coar/version/c_71e4c1898caa6e32info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/196254https://dx.doi.org/urn:doi:10.5004/dwt.2018.22735reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1962542026-06-06T12:50:31Z
dc.title.none.fl_str_mv Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
title Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
spellingShingle Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
Contreras Rodríguez, Ada Rebeca
Cerium oxide nanoparticle
In-situ growth
Self-assembly
Graphene oxide
Heavy met
title_short Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
title_full Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
title_fullStr Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
title_full_unstemmed Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
title_sort Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
dc.creator.none.fl_str_mv Contreras Rodríguez, Ada Rebeca
McCarthy, Joseph E.
Alonso González, Amanda|||0000-0002-5749-7631
Moral-Vico, Javier|||0000-0002-6795-3450
Font, Xavier|||0000-0003-4981-7436
Guńko, Yurii K.
Sánchez, Antoni|||0000-0003-4254-8528
author Contreras Rodríguez, Ada Rebeca
author_facet Contreras Rodríguez, Ada Rebeca
McCarthy, Joseph E.
Alonso González, Amanda|||0000-0002-5749-7631
Moral-Vico, Javier|||0000-0002-6795-3450
Font, Xavier|||0000-0003-4981-7436
Guńko, Yurii K.
Sánchez, Antoni|||0000-0003-4254-8528
author_role author
author2 McCarthy, Joseph E.
Alonso González, Amanda|||0000-0002-5749-7631
Moral-Vico, Javier|||0000-0002-6795-3450
Font, Xavier|||0000-0003-4981-7436
Guńko, Yurii K.
Sánchez, Antoni|||0000-0003-4254-8528
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Cerium oxide nanoparticle
In-situ growth
Self-assembly
Graphene oxide
Heavy met
topic Cerium oxide nanoparticle
In-situ growth
Self-assembly
Graphene oxide
Heavy met
description The aim of this study is to investigate the possibility of using cerium oxide (CeO₂) nanoparticles (NPs) attached to reduced graphene oxide (rGO) as an alternative adsorbent for cadmium (II), lead (II) and chromium (VI) removal from aqueous solution. The new nanomaterials (CeO₂/rGO) were obtained following two different strategies, in-situ growth and self-assembly approach. The adsorption capacities for each heavy metal were investigated at a fixed pH (5.5-6), a range concentration of heavy metal from 5 to 250 mg/L and a fixed concentration of 0.05 mg of CeO₂/rGO nanomaterial. The experimental data were fitted using the Langmuir, Freundlich and Temkin isotherms models. The experimental data of each nanomaterial for the removal of Pb(II) were approximated best by the Langmuir model, while for the removal of Cd(II) Langmuir and Freundlich showed good regression coefficients. The study showed that CeO2 NPs attached to rGO could be used as an efficient adsorbent material for the adsorption of cadmium and lead from aqueous solution. The nanomaterial obtained by in-situ growth registered the highest adsorption capacity for the removal of lead (95.75 mg Pb²⁺/gCeO₂/rGO-HMT), while in the case of cadmium the highest adsorption was obtained with the nanomaterial synthesized following the self-assembly approach (31.26 mg Cd²⁺/g CeO₂/rGO-AM).
publishDate 2018
dc.date.none.fl_str_mv 2
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
SMUR
http://purl.org/coar/version/c_71e4c1898caa6e32
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/196254
https://dx.doi.org/urn:doi:10.5004/dwt.2018.22735
url https://ddd.uab.cat/record/196254
https://dx.doi.org/urn:doi:10.5004/dwt.2018.22735
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
https://rightsstatements.org/vocab/InC/1.0/
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
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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