Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol

In this work, the synthesis of silver and copper nanoparticles and bimetallic silver–platinum and copper–platinum nanoparticles, in previously functionalized multi-walled carbon nanotubes (MWCNT), was carried out using the intermatrix synthesis for the charge of the first metal, and a galvanic repla...

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Authors: Esquivel Peña, Vicente, Bastos Arrieta, Julio Alonso|||0000-0002-8939-6253, Muñoz Tapia, Maria, de Gyves Marciniak, Josefina
Format: article
Publication Date:2019
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/352901
Online Access:https://hdl.handle.net/2117/352901
https://dx.doi.org/10.1007/s42452-019-0357-z
Access Level:Open access
Keyword:Catalysts
Nanoparticles
Polymers
Multi-walled carbon nanotubes
Mono and bimetallic nanoparticles
Polymeric membranes
Hybrid catalyst
Heterogeneous catalysis
4-Nitrophenol reduction
Catalitzadors
Nanopartícules
Polímers
Àrees temàtiques de la UPC::Enginyeria química
id ES_8bb87cd754b16e2b2c04fcf6fb37dd61
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repository_id_str
spelling Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenolEsquivel Peña, VicenteBastos Arrieta, Julio Alonso|||0000-0002-8939-6253Muñoz Tapia, Mariade Gyves Marciniak, JosefinaCatalystsNanoparticlesPolymersMulti-walled carbon nanotubesMono and bimetallic nanoparticlesPolymeric membranesHybrid catalystHeterogeneous catalysis4-Nitrophenol reductionCatalitzadorsNanopartículesPolímersÀrees temàtiques de la UPC::Enginyeria químicaIn this work, the synthesis of silver and copper nanoparticles and bimetallic silver–platinum and copper–platinum nanoparticles, in previously functionalized multi-walled carbon nanotubes (MWCNT), was carried out using the intermatrix synthesis for the charge of the first metal, and a galvanic replacement for the deposition of a second metal to form the bimetallic NPs. Well-controlled small size NPs were obtained as demonstrated by TEM, with a homogeneous distribution and mean particle diameters of ca. 2.9 nm. The hybrid MNPs/MWCNTs catalysts were characterized by FTIR, TEM and XPS. The metal content was determined by TGA and validated via FAAS. Thereupon, the metal–MWCNTs hybrid catalysts were incorporated into a polymeric membrane (PM) and characterized by SEM. The effects of the hybrid catalyst–polymeric support interactions and the role of the MNPs/MWCNTs/PM materials as heterogeneous catalysts were evaluated from the catalytic performance on the reduction of 4-nitrophenol as a model reaction. An apparent rate constant normalized by the metal content of 1706.7 s-1 mol-1 was achieved for the best system (Ag–PtNPs/MWCNTs/PMR) along with a decrease in the percentage of conversion from 95% (first cycle) to 80% (third cycle). Results indicated that the catalytic activity depends mainly on the MNPs size and the metal content in the catalyst. The catalytic activity of the MNPs/MWCNTs was only 3 times higher than for the MNPs/MWCNTs/PMs catalysts, with the former presenting the advantage of being easily recovered from the reaction medium, thus, demonstrating the capability to perform an efficient and sustainable processPeer Reviewed20192019-04-0120212021-10-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/352901https://dx.doi.org/10.1007/s42452-019-0357-zreponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3529012026-05-27T15:37:01Z
dc.title.none.fl_str_mv Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
title Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
spellingShingle Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
Esquivel Peña, Vicente
Catalysts
Nanoparticles
Polymers
Multi-walled carbon nanotubes
Mono and bimetallic nanoparticles
Polymeric membranes
Hybrid catalyst
Heterogeneous catalysis
4-Nitrophenol reduction
Catalitzadors
Nanopartícules
Polímers
Àrees temàtiques de la UPC::Enginyeria química
title_short Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
title_full Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
title_fullStr Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
title_full_unstemmed Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
title_sort Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol
dc.creator.none.fl_str_mv Esquivel Peña, Vicente
Bastos Arrieta, Julio Alonso|||0000-0002-8939-6253
Muñoz Tapia, Maria
de Gyves Marciniak, Josefina
author Esquivel Peña, Vicente
author_facet Esquivel Peña, Vicente
Bastos Arrieta, Julio Alonso|||0000-0002-8939-6253
Muñoz Tapia, Maria
de Gyves Marciniak, Josefina
author_role author
author2 Bastos Arrieta, Julio Alonso|||0000-0002-8939-6253
Muñoz Tapia, Maria
de Gyves Marciniak, Josefina
author2_role author
author
author
dc.subject.none.fl_str_mv Catalysts
Nanoparticles
Polymers
Multi-walled carbon nanotubes
Mono and bimetallic nanoparticles
Polymeric membranes
Hybrid catalyst
Heterogeneous catalysis
4-Nitrophenol reduction
Catalitzadors
Nanopartícules
Polímers
Àrees temàtiques de la UPC::Enginyeria química
topic Catalysts
Nanoparticles
Polymers
Multi-walled carbon nanotubes
Mono and bimetallic nanoparticles
Polymeric membranes
Hybrid catalyst
Heterogeneous catalysis
4-Nitrophenol reduction
Catalitzadors
Nanopartícules
Polímers
Àrees temàtiques de la UPC::Enginyeria química
description In this work, the synthesis of silver and copper nanoparticles and bimetallic silver–platinum and copper–platinum nanoparticles, in previously functionalized multi-walled carbon nanotubes (MWCNT), was carried out using the intermatrix synthesis for the charge of the first metal, and a galvanic replacement for the deposition of a second metal to form the bimetallic NPs. Well-controlled small size NPs were obtained as demonstrated by TEM, with a homogeneous distribution and mean particle diameters of ca. 2.9 nm. The hybrid MNPs/MWCNTs catalysts were characterized by FTIR, TEM and XPS. The metal content was determined by TGA and validated via FAAS. Thereupon, the metal–MWCNTs hybrid catalysts were incorporated into a polymeric membrane (PM) and characterized by SEM. The effects of the hybrid catalyst–polymeric support interactions and the role of the MNPs/MWCNTs/PM materials as heterogeneous catalysts were evaluated from the catalytic performance on the reduction of 4-nitrophenol as a model reaction. An apparent rate constant normalized by the metal content of 1706.7 s-1 mol-1 was achieved for the best system (Ag–PtNPs/MWCNTs/PMR) along with a decrease in the percentage of conversion from 95% (first cycle) to 80% (third cycle). Results indicated that the catalytic activity depends mainly on the MNPs size and the metal content in the catalyst. The catalytic activity of the MNPs/MWCNTs was only 3 times higher than for the MNPs/MWCNTs/PMs catalysts, with the former presenting the advantage of being easily recovered from the reaction medium, thus, demonstrating the capability to perform an efficient and sustainable process
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-04-01
2021
2021-10-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/352901
https://dx.doi.org/10.1007/s42452-019-0357-z
url https://hdl.handle.net/2117/352901
https://dx.doi.org/10.1007/s42452-019-0357-z
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
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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