Multifunctional nanocomposites based on kaolinite/titania/iron applied to hydrogen peroxide production and bisphenol-A removal

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dc.contributor.authorDo Prado, Marcus Vinicius
dc.contributor.authorLima, Vinicius
dc.contributor.authorOliveira, Larissa
dc.contributor.authorNassar, Eduardo José
dc.contributor.authorMarçal, Liziane
dc.contributor.authorFaria, Emerson H. de
dc.contributor.authorVicente, Miguel Ángel
dc.contributor.authorTrujillano, Raquel
dc.contributor.authorSantamaría Arana, Leticia
dc.contributor.authorGil Bravo, Antonio
dc.contributor.authorKorili, Sophia A.
dc.contributor.authorCiuffi, Katia J.
dc.contributor.departmentCienciases_ES
dc.contributor.departmentZientziakeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.contributor.funderUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
dc.date.accessioned2024-12-05T12:49:03Z
dc.date.available2024-12-05T12:49:03Z
dc.date.issued2024-11-06
dc.date.updated2024-12-05T12:42:40Z
dc.description.abstractThe rising global demand for hydrogen peroxide, recognized for its eco-friendly properties, underscores the need for greener synthesis methods. Traditional production processes pose environmental risks, while direct synthesis faces challenges like water formation, explosion hazards, and stability issues, limiting industrial application. On the other hand, Bisphenol A (BPA), an endocrine disruptor widely used in plastics, presents significant environmental and health concerns due to its potential leaching into food and water. The present work introduces efficient and selective photocatalysts aimed at sustainable hydrogen peroxide synthesis and BPA degradation. Both processes were enhanced by the synergistic properties of Fe2O3–TiO2 nanoparticles dispersed within a kaolinite matrix. The Fe2O3-TiO2 photocatalysts, characterized by photoluminescence spectroscopy and X-ray diffraction, showed reduced emission upon iron incorporation and anatase presence on the kaolinite surface. The photocatalytic activity was evaluated through hydroxylation of terephthalic acid, revealing a 127 umol/L min hydroxylation rate for the KaFeTi400 sample. BPA degradation studies indicated optimal performance in acidic conditions, achieving 96 % removal in 2 h and 98 % in 4 h, with the addition of H2O2 enhancing efficiency. Further, the photocatalyst facilitated benzyl alcohol oxidation to benzaldehyde, demonstrating a H2O2 production rate of 120 umol. These findings highlight the multifunctional capabilities and environmental benefits of the photocatalyst, underscoring its potential for sustainable hydrogen peroxide synthesis and broader applications in environmental remediation. The catalysts address the pressing challenges associated with hydrogen peroxide synthesis and pollutant removal, particularly in the context of sustainability and environmental impact.en
dc.description.sponsorshipThe authors thanks to Brazilian mining company Darcy R.O. Silva, from São Simão, São Paulo to supply natural kaolinite. The Brazilian research group acknowledges the support from research funding agencies Fundação de Amparo à Pesquisa do Estado de Sao Paulo, FAPESP (2020/06712¿6), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) finance code 001 and Conselho Nacional de Desenvolvimento Científico e Tecnologico, CNPq (306694-2023-9, 310151/2021-0). The equipment of Brazilian research group has been financed by FAPESP (1998/11022-3, 2005/00720-7, 2011/03335-8, 2012/11673-3 and 2016/01501-1). LS thanks the Universidad Pública de Navarra for a post-doctoral Margarita Salas grant, financed by the European Union¿Next Generation EU. Open access funding provided by Universidad Pública de Navarra.
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dc.format.mimetypeapplication/msworden
dc.identifier.citationDo Prado, M. V., Lima, V., Oliveira, L., Nassar, E. J., Marçal, L., de Faria, E. H., Vicente, M. A., Trujillano, R., Santamaría, L., Gil, A., Korili, S., Ciuffi, K. J. (2024). Multifunctional nanocomposites based on kaolinite/titania/iron applied to hydrogen peroxide production and bisphenol-A removal. Applied Clay Science, 262, 1-15. https://doi.org/10.1016/j.clay.2024.107622.
dc.identifier.doi10.1016/j.clay.2024.107622
dc.identifier.issn0169-1317
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/52651
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofApplied Clay Science (2024), vol. 262, 107622
dc.relation.publisherversionhttps://doi.org/10.1016/j.clay.2024.107622
dc.rights© 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAdvanced oxidation processen
dc.subjectSustainable synthesisen
dc.subjectEmerging pollutanten
dc.subjectClay-based compositeen
dc.subjectHeterogeneous photocatalysisen
dc.titleMultifunctional nanocomposites based on kaolinite/titania/iron applied to hydrogen peroxide production and bisphenol-A removalen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication5b163542-7e92-4872-9625-3187d05c5525
relation.isAuthorOfPublicationcd12e590-cb42-47d5-a642-f60eeee624ec
relation.isAuthorOfPublicationc3e28e52-d0f3-4b9d-82a4-6b347c553c64
relation.isAuthorOfPublication.latestForDiscovery5b163542-7e92-4872-9625-3187d05c5525

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