New Hybrid Nanocomposites with Catalytic Properties Obtained by In Situ Preparation of Gold Nanoparticles on Poly (Ionic Liquid)/Poly (4-Vinylpyridine) Nanofibers

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dc.contributor.authorRamirez, Oscar
dc.contributor.authorLeal, Matias
dc.contributor.authorBriones, Ximena
dc.contributor.authorUrzua, Marcela
dc.contributor.authorBonardd, Sebastian
dc.contributor.authorSaldias, Cesar
dc.contributor.authorLeiva, Angel
dc.date.accessioned2025-01-20T21:02:28Z
dc.date.available2025-01-20T21:02:28Z
dc.date.issued2022
dc.description.abstractIn this work, we report the obtaining of new hybrid nanocomposites with catalytic activity formed by nanofibers of polymer blends and gold nanoparticles. The nanofibers were obtained by electrospinning blends of a poly (ionic liquid) (PIL) and its precursor polymer, poly (4-vinyl pyridine) (P4VPy). The characteristics of the nanofibers obtained proved to be dependent on the proportion of polymer in the blends. The nanofibers obtained were used to synthesize, in situ, gold nanoparticles on their surface by two-step procedure. Firstly, the adsorption of precursor ions on the nanofibers and then their reduction with sodium borohydride to generate gold nanoparticles. The results indicated a significant improvement in the performance of PIL-containing nanofibers over pure P4VPy NFs during ion adsorption, reaching a 20% increase in the amount of adsorbed ions and a 6-fold increase in the respective adsorption constant. The catalytic performance of the obtained hybrid systems in the reduction reaction of 4-nitrophenol to 4-aminophenol was studied. Higher catalytic conversions were obtained using the hybrid nanofibers containing PIL and gold nanoparticles achieving a maximum conversion rate of 98%. Remarkably, the highest value of kinetic constant was obtained for the nanofibers with the highest PIL content.
dc.fuente.origenWOS
dc.identifier.doi10.3390/polym14183782
dc.identifier.eissn2073-4360
dc.identifier.urihttps://doi.org/10.3390/polym14183782
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93040
dc.identifier.wosidWOS:000858759500001
dc.issue.numero18
dc.language.isoen
dc.revistaPolymers
dc.rightsacceso restringido
dc.subjectpoly ionic liquids
dc.subjectnanofibers
dc.subjectelectrospinning
dc.subjectgold nanoparticles
dc.subjecthybrid nanocomposites
dc.titleNew Hybrid Nanocomposites with Catalytic Properties Obtained by In Situ Preparation of Gold Nanoparticles on Poly (Ionic Liquid)/Poly (4-Vinylpyridine) Nanofibers
dc.typeartículo
dc.volumen14
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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