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Growth of Carbon Nanotubes on Co(x)‐Ni(1‐x) Ferrites by Chemical Vapor Deposition and Performance on Catalytic Wet Peroxide Oxidation

2025Artigo científico Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosEngenharia e Tecnologia::Engenharia do Ambiente
datacite.subject.fosEngenharia e Tecnologia::Nanotecnologia
datacite.subject.fosEngenharia e Tecnologia::Biotecnologia Ambiental
datacite.subject.sdg04:Educação de Qualidade
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorSilva, Adriano S.
dc.contributor.authorRoman, Fernanda F.
dc.contributor.authorDíaz de Tuesta, Jose Luis
dc.contributor.authorOlias, Lola G.
dc.contributor.authorÇaha, Ihsan
dc.contributor.authorFerreira, Ana P.
dc.contributor.authorSouza, Renata P. de
dc.contributor.authorDeepak, Francis Leonard
dc.contributor.authorPereira, Ana I.
dc.contributor.authorSilva, Adrián
dc.contributor.authorGomes, Helder T.
dc.date.accessioned2025-11-12T15:40:24Z
dc.date.available2025-11-12T15:40:24Z
dc.date.issued2025
dc.description.abstractUpcycling plastic solid wastes (PSWs) into high-value carbon nanotubes (CNTs) offers a promising approach to sustainable material development. This study explores the synthesis of CNTs via chemical vapor deposition (CVD) using mixed cobalt-nickel-iron oxide catalysts supported on alumina and PSW representative polyolefins as carbon sources. The impact of catalyst composition on the yield, morphology, and textural properties of CNTs was systematically evaluated. Characterization techniques, such as textural properties, transmission electron microscopy (TEM), Raman spectroscopy, and thermogravimetric analysis (TGA), revealed that increasing cobalt content in the catalyst resulted in thicker CNT walls (9.2-23.6 nm) and different textural properties (SBET = 47-87 m2 g-1). The synthesized CNTs were then tested in catalytic wet peroxide oxidation (CWPO) for the degradation of sulfamethoxazole (SMX) and bisphenol A (BPA) in both single- and multi-component systems. The results indicated that a higher cobalt content in the CNT catalysts enhanced catalytic activity, particularly for BPA degradation, due to improved H2O2 decomposition. However, a higher leaching of Co and Fe was also observed. The CNTs synthesized with a Co/Ni catalyst composition ratio of 7/3 (CNT@Co0.7Ni0.3) exhibited the best balance among the tested materials in terms of CNTs yield, catalytic activity, and stability. These findings provide valuable insights to optimize CNT catalysts derived from waste plastics for environmental remediation applications.eng
dc.description.sponsorshipThis work was financially supported by national funds through FCT/MCTES (PIDDAC): CeDRI, UIDB/05757/2020 (DOI: 10.54499/UIDB/05757/2020) and UIDP/05757/2020 (DOI: 10.54499/UIDB/05757/2020); CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/2020) and UIDP/00690/2020 (DOI: 10.54499/UIDP/00690/2020); SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020). This work was also financially supported by: UID/50020 of LSRE-LCM–Laboratory of Separation and Reaction Engineering–Laboratory of Catalysis and Materials–funded by Fundação para a Ciência e a Tecnologia, I.P. /MCTES through national funds; and ALiCE, LA/P/0045/2020 (DOI: 10.54499/LA/P/0045/2020). Fernanda F. Roman acknowledges the national funding by FCT and the European Social Fund, FSE, through the individual research grant SFRH/BD/143224/2019. Adriano S. Silva was supported by the doctoral Grant SFRH/BD/151346/2021 and Ana Paula Ferreira by PRT/BD/153090/2021, financed by FCT with funds from NORTE2020, under MIT Portugal Program. Jose L. Diaz De Tuesta acknowledges the financial support through the program of Atracción al Talento of Comunidad de Madrid (Spain) for the individual research grant and project 2022-T1/AMB-23946 and through the program Consolidación Investigadora 2024 (CNS2024-154264) supported from Agencia Estatal de Investigación (Spain). The authors are also grateful for the finantial support provided by Sociedade Ponto Verde for the project “Estudo técnico-económico para a valorização de resíduos de embalagens plásticas na produção de nanotubos de carbono.”
dc.identifier.citationSilva, Adriano S.; Roman, Fernanda; Tuesta, Jose L. de Diaz de; Olias, Lola G.; Çaha, Ihsan; Ferreira, Ana P.; Souza, Renata P. de; Deepak, Francis Leonard; Pereira, Ana I; Silva, Adrián M. T.; Gomes, Helder (2025) Growth of Carbon Nanotubes on Co(x)-Ni(1-x) Ferrites by Chemical Vapor Deposition and Performance on Catalytic Wet Peroxide Oxidation. ChemCatChem. ISSN 1867-3880. 17:16, p. 1-13
dc.identifier.doi10.1002/cctc.202500438
dc.identifier.issn1867-3880
dc.identifier.issn1867-3899
dc.identifier.urihttp://hdl.handle.net/10198/35055
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley-VCH Verlag
dc.relationResearch Centre in Digitalization and Intelligent Robotics
dc.relationMountain Research Center - UIDB/00690/2020
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
dc.relationLaboratory of Separation and Reaction Engineering
dc.relationALICE - Associate Laboratory in Chemical Engineering
dc.relationAmphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels
dc.relationOptimization of municipal solid waste management systems towards sustainability - SFRH/BD/151346/2021
dc.relationMonitoring of municipal waste streams and their transformation into geopolymers
dc.relation.ispartofChemCatChem
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/
dc.subjectCarbon material
dc.subjectCarbon nanotubes
dc.subjectCWPO
dc.subjectMulti-component
dc.subjectWastewater treatment
dc.titleGrowth of Carbon Nanotubes on Co(x)‐Ni(1‐x) Ferrites by Chemical Vapor Deposition and Performance on Catalytic Wet Peroxide Oxidationeng
dc.typejournal article
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oaire.citation.endPage13
oaire.citation.issue16
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oaire.citation.titleChemCatChem
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