Graphene-based Janus micromotors for the dynamic removal of pollutants

Persistent organic pollutants (POPs) are ubiquitous in the environment as a result of modern industrial processes. We present an effective POPs decontamination strategy based on their dynamic adsorption at the surface of reduced graphene oxide (rGO)-coated silica (SiO)-Pt Janus magnetic micromotors...

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Autores: Orozco, Jahir|||0000-0001-6249-8092, Mercante, Luiza A., Pol, Roberto|||0000-0002-4387-4061, Merkoçi, Arben|||0000-0003-2486-8085
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:195668
Acceso en línea:https://ddd.uab.cat/record/195668
https://dx.doi.org/urn:doi:10.1039/c5ta09850e
Access Level:acceso abierto
Palabra clave:Adsorption properties
Contaminated solutions
Environmental remediation
Environmental sample
Magnetic micromotors
Persistent organic pollutants
Polybrominated diphenyl ether (PBDEs)
Reduced graphene oxides (RGO)
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spelling Graphene-based Janus micromotors for the dynamic removal of pollutantsOrozco, Jahir|||0000-0001-6249-8092Mercante, Luiza A.Pol, Roberto|||0000-0002-4387-4061Merkoçi, Arben|||0000-0003-2486-8085Adsorption propertiesContaminated solutionsEnvironmental remediationEnvironmental sampleMagnetic micromotorsPersistent organic pollutantsPolybrominated diphenyl ether (PBDEs)Reduced graphene oxides (RGO)Persistent organic pollutants (POPs) are ubiquitous in the environment as a result of modern industrial processes. We present an effective POPs decontamination strategy based on their dynamic adsorption at the surface of reduced graphene oxide (rGO)-coated silica (SiO)-Pt Janus magnetic micromotors for their appropriate final disposition. While the motors rapidly move in a contaminated solution, the adsorption of POPs efficiently takes place in a very short time. Characterization of the micromotors both from the materials and from the motion point of view was performed. Polybrominated diphenyl ethers (PBDEs) and 5-chloro-2-(2,4-dichlorophenoxy) phenol (triclosan) were chosen as model POPs and the removal of the contaminants was efficiently achieved. The rGO-coated micromotors demonstrated superior adsorbent properties with respect to their concomitant GO-coated micromotors, static rGO-coated particles and dynamic silica micromotors counterparts. The extent of decontamination was studied over the number of micromotors, whose magnetic properties were used for their collection from environmental samples. The adsorption properties were maintained for 4 cycles of micromotors reuse. The new rGO-coated SiO functional material-based micromotors showed outstanding capabilities towards the removal of POPs and their further disposition, opening up new possibilities for efficient environmental remediation of these hazardous compounds. 22016-01-0120162016-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/195668https://dx.doi.org/urn:doi:10.1039/c5ta09850ereponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 613844Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-260open 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:1956682026-06-06T12:50:31Z
dc.title.none.fl_str_mv Graphene-based Janus micromotors for the dynamic removal of pollutants
title Graphene-based Janus micromotors for the dynamic removal of pollutants
spellingShingle Graphene-based Janus micromotors for the dynamic removal of pollutants
Orozco, Jahir|||0000-0001-6249-8092
Adsorption properties
Contaminated solutions
Environmental remediation
Environmental sample
Magnetic micromotors
Persistent organic pollutants
Polybrominated diphenyl ether (PBDEs)
Reduced graphene oxides (RGO)
title_short Graphene-based Janus micromotors for the dynamic removal of pollutants
title_full Graphene-based Janus micromotors for the dynamic removal of pollutants
title_fullStr Graphene-based Janus micromotors for the dynamic removal of pollutants
title_full_unstemmed Graphene-based Janus micromotors for the dynamic removal of pollutants
title_sort Graphene-based Janus micromotors for the dynamic removal of pollutants
dc.creator.none.fl_str_mv Orozco, Jahir|||0000-0001-6249-8092
Mercante, Luiza A.
Pol, Roberto|||0000-0002-4387-4061
Merkoçi, Arben|||0000-0003-2486-8085
author Orozco, Jahir|||0000-0001-6249-8092
author_facet Orozco, Jahir|||0000-0001-6249-8092
Mercante, Luiza A.
Pol, Roberto|||0000-0002-4387-4061
Merkoçi, Arben|||0000-0003-2486-8085
author_role author
author2 Mercante, Luiza A.
Pol, Roberto|||0000-0002-4387-4061
Merkoçi, Arben|||0000-0003-2486-8085
author2_role author
author
author
dc.subject.none.fl_str_mv Adsorption properties
Contaminated solutions
Environmental remediation
Environmental sample
Magnetic micromotors
Persistent organic pollutants
Polybrominated diphenyl ether (PBDEs)
Reduced graphene oxides (RGO)
topic Adsorption properties
Contaminated solutions
Environmental remediation
Environmental sample
Magnetic micromotors
Persistent organic pollutants
Polybrominated diphenyl ether (PBDEs)
Reduced graphene oxides (RGO)
description Persistent organic pollutants (POPs) are ubiquitous in the environment as a result of modern industrial processes. We present an effective POPs decontamination strategy based on their dynamic adsorption at the surface of reduced graphene oxide (rGO)-coated silica (SiO)-Pt Janus magnetic micromotors for their appropriate final disposition. While the motors rapidly move in a contaminated solution, the adsorption of POPs efficiently takes place in a very short time. Characterization of the micromotors both from the materials and from the motion point of view was performed. Polybrominated diphenyl ethers (PBDEs) and 5-chloro-2-(2,4-dichlorophenoxy) phenol (triclosan) were chosen as model POPs and the removal of the contaminants was efficiently achieved. The rGO-coated micromotors demonstrated superior adsorbent properties with respect to their concomitant GO-coated micromotors, static rGO-coated particles and dynamic silica micromotors counterparts. The extent of decontamination was studied over the number of micromotors, whose magnetic properties were used for their collection from environmental samples. The adsorption properties were maintained for 4 cycles of micromotors reuse. The new rGO-coated SiO functional material-based micromotors showed outstanding capabilities towards the removal of POPs and their further disposition, opening up new possibilities for efficient environmental remediation of these hazardous compounds.
publishDate 2016
dc.date.none.fl_str_mv 2
2016-01-01
2016
2016-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/195668
https://dx.doi.org/urn:doi:10.1039/c5ta09850e
url https://ddd.uab.cat/record/195668
https://dx.doi.org/urn:doi:10.1039/c5ta09850e
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 613844
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-260
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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