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Magnetic carbon nanotubes prepared from LDPE, HDPE and PP

2022Documento de conferência Acesso aberto
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dc.contributor.authorSanches, Lucas Fenato
dc.contributor.authorSilva, Adriano S.
dc.contributor.authorRoman, Fernanda
dc.contributor.authorSilva, Ana P. F.
dc.contributor.authorDíaz de Tuesta, Jose Luis
dc.contributor.authorSilva, Fernando Alves
dc.contributor.authorSilva, Adrián
dc.contributor.authorFaria, Joaquim
dc.contributor.authorGomes, Helder
dc.date.accessioned2023-02-27T11:52:57Z
dc.date.available2023-02-27T11:52:57Z
dc.date.issued2022
dc.description.abstractPlastics are among the most generated solid wastes, predominantly composed by polymers, as low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polypropylene (PP).1 This work deals with the preparation of magnetic carbon nanotubes (CNTs) by catalytic chemical vapor deposition (CCVD) at 850 ºC, considering LDPE, HDPE and PP as carbon precursors representative of urban plastic solid waste in a perspective of circular economy.1 Magnetite supported in alumina nanoparticles previously synthesized by sol-gel were used as catalysts in the CCVD process. Afterward, each synthesized CNT was washed with 50% H2SO4 at 140 °C during 3 h to remove the remaining magnetite, following methods previously described.2 The successful removal of the magnetite particles was assessed measuring the ashes content of the CNTs, removals higher than 83% being achieved (ashes content of final CNT products ranging from 4.2 to 7.9%). The remaining catalyst was located inside the CNTs, conferring magnetic properties to the materials even after washing (Figure 1). BET specific surface areas of 94, 75, and 66 m2 g-1 were found for CNT_LDPE, CNT_HDPE and CNT_PP, respectively, and a slight increase of 1-5 m2 g-1 was observed after washing the materials with acid.pt_PT
dc.description.sponsorshipThis work was financially supported by project "PLASTIC_TO_FUEL&MAT – Upcycling Waste Plastics into Fuel and Carbon Nanomaterials" (PTDC/EQU-EQU/31439/2017), the Associate Laboratory LSRE-LCM (UIDB/50020/2020) - funded by national funds through FCT/MCTES (PIDDAC) and CIMO (UIDB/00690/2020) through FEDER under Program PT2020. Adriano S. Silva acknowledges the national funding by FCT through MIT Portugal Program for the doctoral Grant with reference SFRH/BD/151346/2021. Fernanda F. Roman acknowledges the national funding by FCT and European Social Fund, FSE, through the individual research grant SFRH/BD/143224/2019.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSanches, Lucas Fenato; Silva, Adriano S.; Roman, Fernanda; Silva, Ana Paula; Díaz de Tuesta, Jose Luis; Silva, Fernando Alves; Silva, Adrián; Faria, Joaquim; Gomes, Helder (2022). Magnetic carbon nanotubes prepared from LDPE, HDPE and PP. In Diana C.G.A. Pinto; Martyn Pillinger; Anabela Valente; Mário Simões (Eds.) XI National Meeting on Catalysis and Porous Materials: Abstracts book. Aveiropt_PT
dc.identifier.urihttp://hdl.handle.net/10198/27221
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSociedade Portuguesa de Químicapt_PT
dc.relationUpcycling Waste Plastics into Fuel and Carbon Nanomaterials
dc.relationLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
dc.relationMountain Research Center
dc.relationAmphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMagnetic carbon nanotubespt_PT
dc.subjectResearch Subject Categories::TECHNOLOGY::Bioengineeringpt_PT
dc.titleMagnetic carbon nanotubes prepared from LDPE, HDPE and PPpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleUpcycling Waste Plastics into Fuel and Carbon Nanomaterials
oaire.awardTitleLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
oaire.awardTitleMountain Research Center
oaire.awardTitleAmphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FEQU-EQU%2F31439%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50020%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F151346%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F143224%2F2019/PT
oaire.citation.conferencePlaceAveiropt_PT
oaire.citation.endPage97pt_PT
oaire.citation.startPage97pt_PT
oaire.citation.titleXI National Meeting on Catalysis and Porous Materialspt_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
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person.familyNameSilva
person.familyNameRoman
person.familyNameSilva
person.familyNameDíaz de Tuesta
person.familyNameGomes
person.givenNameAdriano S.
person.givenNameFernanda
person.givenNameAna P. F.
person.givenNameJose Luis
person.givenNameHelder
person.identifierhttps://www.researchgate.net/profile/Ana-Ferreira-Da-Silva-3
person.identifier.ciencia-id3E14-5049-B09D
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person.identifier.ciencia-id991F-2DB8-3246
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person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0002-6795-2335
person.identifier.orcid0000-0001-5360-5298
person.identifier.orcid0000-0001-8979-8407
person.identifier.orcid0000-0003-2408-087X
person.identifier.orcid0000-0001-6898-2408
person.identifier.ridD-9785-2017
person.identifier.scopus-author-id55755821600
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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