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Floating TiO2-Cork Nano-Photocatalysts for Water Purification Using Sunlight

2022-08-05Artigo científico Acesso aberto
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dc.contributor.authorMatias, Maria Leonor
dc.contributor.authorMorais, Maria
dc.contributor.authorPimentel, Ana
dc.contributor.authorVasconcelos, Francisco X.
dc.contributor.authorReis Machado, Ana S.
dc.contributor.authorRodrigues, Joana
dc.contributor.authorFortunato, Elvira
dc.contributor.authorMartins, Rodrigo
dc.contributor.authorNunes, Daniela
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.institutionLAQV@REQUIMTE
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.pblMolecular Diversity Preservation International (MDPI)
dc.date.accessioned2023-03-16T22:39:22Z
dc.date.available2023-03-16T22:39:22Z
dc.date.issued2022-08-05
dc.descriptionFunding Information: The work was also partially funded by the Nanomark collaborative project between INCM (Imprensa Nacional—Casa da Moeda) and CENIMAT/i3N. Publisher Copyright: © 2022 by the authors.
dc.description.abstractIn the present study, titanium dioxide (TiO2) nano-photocatalysts were synthesized through microwave irradiation. In a typical microwave synthesis, TiO2 nanomaterials were simultaneously produced in powder form and also directly covering cork substrates. The TiO2 nanopowder was analyzed by X-ray diffraction (XRD), Raman spectroscopy and transmission electron microscopy (TEM), revealing that the solvothermal microwave synthesis resulted only in the TiO2 anatase phase. From Fourier-transform infrared spectroscopy (FTIR), cork’s organic species, along with bands of TiO2, were detected. UV–VIS absorption spectrum revealed an absorption extension to the visible region, since a brown powdered TiO2 product was obtained. Very fine nanoparticles were observed displaying a nearly spherical shape that agglomerates in larger particles. These larger particles fully covered the surface of the honeycomb cork cells, originating TiO2 functionalized cork platforms. The TiO2 functionalized substrates were further tested as floating photocatalysts and their photocatalytic activity was assessed from rhodamine B degradation under solar simulating light and natural sunlight. Reusability tests were also performed under natural sunlight. The strategy applied in this research work allowed the production of green and low-cost cork platforms based on TiO2 photoactive materials with the ability to purify polluted water under natural sunlight.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent22
dc.format.extent3248340
dc.identifier.doi10.3390/su14159645
dc.identifier.issn2071-1050
dc.identifier.otherPURE: 56144184
dc.identifier.otherPURE UUID: c034b0ee-d8f4-4da5-ba56-76503081698d
dc.identifier.otherScopus: 85137199064
dc.identifier.otherWOS: 000840168400001
dc.identifier.otherORCID: /0000-0003-3115-6588/work/131002489
dc.identifier.otherORCID: /0000-0002-4202-7047/work/131002516
dc.identifier.urihttp://hdl.handle.net/10362/150739
dc.identifier.urlhttps://www.scopus.com/pages/publications/85137199064
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0037%2F2020/PT
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relation3D printed TiO2 photocatalysts for green urea production, water purification and CO2 capture under sunlight
dc.relationSYmbiosis for eNERGY harversting concepts for smart platforms on foils
dc.relationEmerging Printed Electronics Research Infrastructure (EMERGE)
dc.relationMultifunctional Digital Materials Platform for Smart Integrated Applications
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/101008701/EU
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/787410/EU
dc.subjectcork
dc.subjectfloating catalysts
dc.subjectmicrowave synthesis
dc.subjectphotocatalysis
dc.subjectTiO
dc.subjectwater purification
dc.subjectComputer Science (miscellaneous)
dc.subjectGeography, Planning and Development
dc.subjectRenewable Energy, Sustainability and the Environment
dc.subjectBuilding and Construction
dc.subjectEnvironmental Science (miscellaneous)
dc.subjectEnergy Engineering and Power Technology
dc.subjectHardware and Architecture
dc.subjectComputer Networks and Communications
dc.subjectManagement, Monitoring, Policy and Law
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titleFloating TiO2-Cork Nano-Photocatalysts for Water Purification Using Sunlighten
dc.typejournal article
degois.publication.issue15
degois.publication.titleSustainability (Switzerland)
degois.publication.volume14
dspace.entity.typePublication
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oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitle3D printed TiO2 photocatalysts for green urea production, water purification and CO2 capture under sunlight
oaire.awardTitleSYmbiosis for eNERGY harversting concepts for smart platforms on foils
oaire.awardTitleEmerging Printed Electronics Research Infrastructure (EMERGE)
oaire.awardTitleMultifunctional Digital Materials Platform for Smart Integrated Applications
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0037%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/UI%2FBD%2F151292%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/952169/EU
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/101008701/EU
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oaire.fundingStream6817 - DCRRNI ID
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameEuropean Commission
project.funder.nameEuropean Commission
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