Green host urethanesil based on castor oil doped with Eu3+ complex

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Ribeirão Preto (UNAERP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversité Laval-
Autor(es): dc.creatorde Freitas, Beatriz Damasio-
Autor(es): dc.creatorOnishi, Bruno Seiki Domingos-
Autor(es): dc.creatorCaixeta, Fabio Jose-
Autor(es): dc.creatorBortoletto-Santos, Ricardo-
Autor(es): dc.creatorGarcia, Francis Dayan Rivas-
Autor(es): dc.creatorMessaddeq, Younes-
Autor(es): dc.creatorRibeiro, Sidney Jose Lima-
Data de aceite: dc.date.accessioned2025-08-21T16:49:13Z-
Data de disponibilização: dc.date.available2025-08-21T16:49:13Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.optmat.2023.113706-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249839-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249839-
Descrição: dc.descriptionPolymers based on vegetable oils can be suitable candidates for the replacement of fossil polymers, for instance, polyurethanes (PU) based on castor oil. However, the synthesis PU materials are normally carried out using organic solvents, metals, and high temperatures. To overcome these problems, the sol-gel route is an alternative approach based on mild conditions to produce organic-inorganic hybrid urethanesil (Ut) environmentally friendly. Therefore, in this study, we proposed an organic-inorganic hybrid (OIH) synthesis based on castor oil (CO)-derived Ut, as well as the incorporation and interaction of europium β-diketone [Eu(tta)3(H2O)2] in organic-inorganic hybrid matrix. The Ut self-supporting hybrid was synthesized from the reaction of 3-(triethoxysilyl)propyl isocyanate (ICPTES) and CO in a 3:1 M ratio. The films were obtained using the sol-gel process, following the casting method. The CO-based OIH-Ut films showed high transmittance in the visible and infrared spectrum (90%), and urethanesil showed photoluminescence (PL) with emission at 416.0 nm when excited at 319.0 nm. The results also revealed an increase in the intrinsic quantum yield of PL (QLEu) for [Eu(tta)3(H2O)2]. It has been verified a QLEu value of 27% for the isolated complex, whereas when it is incorporated into OIH-Ut a value of 49% was observed.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP)-
Descrição: dc.descriptionPostgraduate Program in Environmental Technology University of Ribeirão Preto (UNAERP)-
Descrição: dc.descriptionSão Carlos Institute of Chemistry University of São Paulo (USP)-
Descrição: dc.descriptionDépartement de physique de génie physique et d'optique Université Laval-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2020/03259–9-
Descrição: dc.descriptionFAPESP: 2022/03652–8-
Descrição: dc.descriptionCAPES: 88887.499004/2020–00-
Idioma: dc.languageen-
Relação: dc.relationOptical Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectHybrid-
Palavras-chave: dc.subjectPhotoluminescence-
Palavras-chave: dc.subjectPhotonics-
Palavras-chave: dc.subjectQuantum yield-
Palavras-chave: dc.subjectSol-gel-
Palavras-chave: dc.subjectSustainability-
Título: dc.titleGreen host urethanesil based on castor oil doped with Eu3+ complex-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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