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

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dc.contributor.authorde Freitas, Beatriz Damasio [UNESP]
dc.contributor.authorOnishi, Bruno Seiki Domingos [UNESP]
dc.contributor.authorCaixeta, Fabio Jose [UNESP]
dc.contributor.authorBortoletto-Santos, Ricardo [UNESP]
dc.contributor.authorGarcia, Francis Dayan Rivas
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorRibeiro, Sidney Jose Lima [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Ribeirão Preto (UNAERP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversité Laval
dc.date.accessioned2023-07-29T16:10:39Z
dc.date.available2023-07-29T16:10:39Z
dc.date.issued2023-04-01
dc.description.abstractPolymers 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.en
dc.description.affiliationInstitute of Chemistry São Paulo State University (UNESP)
dc.description.affiliationPostgraduate Program in Environmental Technology University of Ribeirão Preto (UNAERP)
dc.description.affiliationSão Carlos Institute of Chemistry University of São Paulo (USP)
dc.description.affiliationDépartement de physique de génie physique et d'optique Université Laval
dc.description.affiliationUnespInstitute of Chemistry São Paulo State University (UNESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2020/03259–9
dc.description.sponsorshipIdFAPESP: 2022/03652–8
dc.description.sponsorshipIdCAPES: 88887.499004/2020–00
dc.identifierhttp://dx.doi.org/10.1016/j.optmat.2023.113706
dc.identifier.citationOptical Materials, v. 138.
dc.identifier.doi10.1016/j.optmat.2023.113706
dc.identifier.issn0925-3467
dc.identifier.scopus2-s2.0-85151998978
dc.identifier.urihttp://hdl.handle.net/11449/249839
dc.language.isoeng
dc.relation.ispartofOptical Materials
dc.sourceScopus
dc.subjectHybrid
dc.subjectPhotoluminescence
dc.subjectPhotonics
dc.subjectQuantum yield
dc.subjectSol-gel
dc.subjectSustainability
dc.titleGreen host urethanesil based on castor oil doped with Eu3+ complexen
dc.typeArtigo
unesp.author.orcid0000-0002-8162-6747[7]

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Artigos - Química Inorgânica - IQ