Logo do repositório
 
Publicação

Carbon-Coated Magnetic Catalysts for Enhanced Degradation of Nitrophenols: Stability and Efficiency in Catalytic Wet Peroxide Oxidation

2025Artigo científico Acesso aberto
Ver registo simples
datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorBaldo, Arthur P.
dc.contributor.authorBezerra, Ana J.B.
dc.contributor.authorSilva, Adriano S.
dc.contributor.authorSilva, Ana P. F.
dc.contributor.authorRoman, Fernanda F.
dc.contributor.authorÇaha, Ihsan
dc.contributor.authorBañobre-López, Manuel
dc.contributor.authorDeepak, Francis Leonard
dc.contributor.authorGomes, Helder T.
dc.date.accessioned2025-05-30T08:02:41Z
dc.date.available2025-05-30T08:02:41Z
dc.date.issued2025
dc.description.abstractNitrophenols are persistent organic pollutants that pose serious environmental and health risks due to their toxic and lipophilic nature. Their persistence arises from strong aromatic stability and resistance to biodegradation, while their lipophilicity facilitates bioaccumulation, exacerbating ecological and human health concerns. To address this challenge, this study focuses on the synthesis and characterization of two different types of hybrid multi-core magnetic catalysts: (i) cobalt ferrite (Co-Fe2O4), which exhibits ferrimagnetic properties, and (ii) magnetite (Fe3O4), which demonstrates close superparamagnetic behavior and is coated with a novel and less hazardous phloroglucinol–glyoxal-derived resin. This approach aims to enhance catalytic efficiency while reducing the environmental impact, offering a sustainable solution for the degradation of nitrophenols in aqueous matrices. Transmission electron microscopy (TEM) images revealed the formation of a multi-core shell structure, with carbon layer sizes of 6.6 ± 0.7 nm for cobalt ferrite and 4.2 ± 0.2 nm for magnetite. The catalysts were designed to enhance the stability and performance in catalytic wet peroxide oxidation (CWPO) processes using sol–gel and solution combustion synthesis methods, respectively. In experiments of single-component degradation, the carbon-coated cobalt ferrite (CoFe@C) catalyst achieved 90% removal of 2-nitrophenol (2-NP) and 96% of 4-nitrophenol (4-NP), while carbon-coated magnetite (Fe3O4@C) demonstrated similar efficiency, with 86% removal of 2-NP and 94% of 4-NP. In the multi-component system, CoFe@C exhibited the highest catalytic activity, reaching 96% removal of 2-NP, 99% of 4-NP, and 91% decomposition of H2O2. No leaching of iron was detected in the coated catalysts, whereas the uncoated materials exhibited similar and significant leaching (CoFe: 5.66 mg/L, Fe3O4: 12 mg/L) in the single- and multi-component system. This study underscores the potential of hybrid magnetic catalysts for sustainable environmental remediation, demonstrating a dual-function mechanism that enhances catalytic activity and structural stability.eng
dc.description.sponsorshipThis work was financially supported by national funds through FCT/MCTES (PID-DAC): 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). Also supported by national funds through FCT/MCTES (PIDDAC). 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 the MIT Portugal Program. The authors are also grateful for the financial support provided by Fundação La Caixa for the project INOVÁGUA.
dc.identifier.citationBaldo, Arthur P.; Bezerra, Ana Júlia B.; Silva, Adriano S.; Silva, Ana P. F.; Roman, Fernanda; Çaha, Ihsan; Bañobre-López, Manuel; Deepak, Francis Leonard; Gomes, Helder (2025). Carbon-Coated Magnetic Catalysts for Enhanced Degradation of Nitrophenols: Stability and Efficiency in Catalytic Wet Peroxide Oxidation. Catalysts. ISSN 2073-4344. 15:4, p. 1-20
dc.identifier.doi10.3390/catal15040376
dc.identifier.issn2073-4344
dc.identifier.urihttp://hdl.handle.net/10198/34515
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationMountain Research Center - UIDB/00690/2020
dc.relationMountain Research Center - UIDP/00690/2020
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
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.ispartofCatalysts
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHeterogeneous Fenton
dc.subjectHazardous aromatic contaminants
dc.subjectCore–shell composite
dc.subjectCarbon-coated magnetic nanoparticles
dc.subjectMulti-component system
dc.titleCarbon-Coated Magnetic Catalysts for Enhanced Degradation of Nitrophenols: Stability and Efficiency in Catalytic Wet Peroxide Oxidationeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00690/2020
oaire.awardNumberUIDP/00690/2020
oaire.awardNumberLA/P/0007/2020
oaire.awardNumberSFRH/BD/143224/2019
oaire.awardNumberSFRH/BD/151346/2021
oaire.awardNumberPRT/BD/153090/2021
oaire.awardTitleMountain Research Center - UIDB/00690/2020
oaire.awardTitleMountain Research Center - UIDP/00690/2020
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
oaire.awardTitleAmphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels
oaire.awardTitleOptimization of municipal solid waste management systems towards sustainability - SFRH/BD/151346/2021
oaire.awardTitleMonitoring of municipal waste streams and their transformation into geopolymers
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F143224%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F151346%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/PRT%2FBD%2F153090%2F2021/PT
oaire.citation.endPage20
oaire.citation.issue4
oaire.citation.startPage1
oaire.citation.titleCatalysts
oaire.citation.volume15
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
oaire.fundingStreamOE
oaire.fundingStreamOE
person.affiliation.nameCeDRI, Instituto Politécnico de Bragança
person.familyNameBaldo
person.familyNameBezerra
person.familyNameSilva
person.familyNameSilva
person.familyNameRoman
person.familyNameGomes
person.givenNameArthur P.
person.givenNameAna J.B.
person.givenNameAdriano S.
person.givenNameAna P. F.
person.givenNameFernanda F.
person.givenNameHelder T.
person.identifierhttps://www.researchgate.net/profile/Ana-Ferreira-Da-Silva-3
person.identifier.ciencia-idD51C-88AB-48EE
person.identifier.ciencia-id341B-2529-1112
person.identifier.ciencia-id3E14-5049-B09D
person.identifier.ciencia-id991F-2DB8-3246
person.identifier.ciencia-idEE1B-DAA7-D0BD
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0009-0000-7853-0667
person.identifier.orcid0000-0002-6795-2335
person.identifier.orcid0000-0001-8979-8407
person.identifier.orcid0000-0001-5360-5298
person.identifier.orcid0000-0001-6898-2408
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication05ba5570-ef6e-47f0-9223-c6de23817e57
relation.isAuthorOfPublication8a84a0ac-8d0c-40a4-86b9-4be0b1f4f23f
relation.isAuthorOfPublication3ba90ba4-aac8-4892-a30f-25a10bc27298
relation.isAuthorOfPublication729b6629-41f1-4699-9630-9a32f38df4e5
relation.isAuthorOfPublicationc145030b-c811-4be4-b6af-1926e364cb33
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscovery3ba90ba4-aac8-4892-a30f-25a10bc27298
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
relation.isProjectOfPublication0aac8939-28c2-46f4-ab6b-439dba7f9942
relation.isProjectOfPublication6255046e-bc79-4b82-8884-8b52074b4384
relation.isProjectOfPublication35216b99-752d-46d1-bc41-63ab229a78fe
relation.isProjectOfPublication999404bb-b4d2-42e5-832b-dace7a0a6dd1
relation.isProjectOfPublication91a402c0-2c8d-4e39-b8f0-245054eb302f
relation.isProjectOfPublication510615e3-eb2b-4b85-ad3a-272d19c103c2
relation.isProjectOfPublication.latestForDiscovery29718e93-4989-42bb-bcbc-4daff3870b25

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
catalysts-15-00376-v3.pdf
Tamanho:
7.32 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
1.75 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

CIMO - Artigos em Revistas Indexados à WoS/Scopus