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Solid-state synthesis of pure and doped lanthanide oxide nanomaterials by using polymer templates. Study of their luminescent properties

dc.contributor.authorDiaz C.
dc.contributor.authorValenzuela M.L.
dc.contributor.authorGarcía C.
dc.contributor.authorde la Campa R.
dc.contributor.authorPresa Soto A.
dc.date.accessioned2020-09-02T22:16:46Z
dc.date.available2020-09-02T22:16:46Z
dc.date.issued2017
dc.identifier10.1016/j.matlet.2017.07.112
dc.identifier.citation209, , 111-114
dc.identifier.issn0167577X
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4326
dc.descriptionWe herein reports the solid-state synthesis of pure and doped lanthanide oxides by using polymeric materials (chitosan and polystyrene-co-poly(4-vinylpyridine), PS-co-P4VP) as a solid template. Lanthanide nanomaterials are prepared in two-step methodology combining both solution and solid procedures. The first involves the synthesis of macromolecular complexes Chitosan·[M(NO3)3//M′(NO3)3] and PS-co-P4VP·[M(NO3)3//M′(NO3)3] (M = La, Pr; M′ = Eu); and the second consists in the pyrolysis at 800 °C of the as-prepared solid macromolecular complexes. The pyrolytic products were characterized by X-ray diffraction, SEM-EDS, TEM, and HR-TEM. Whereas similar particle size distribution in average (ca. 25 nm) was observed with both polymer templates, a higher degree of crystallinity was obtained by using PS-co-P4VP. Importantly, the emission luminescent intensity of the doped pyrolytic oxides, La2O3//Eu2O3 and PrO1,83//Eu2O3, is not quenched despite the presence of dopant. Thus, the as-prepared doped oxides exhibit an enhanced Eu3+ emission originated from the 5D0 → 7Fn (n = 1, 2, 3, 4) transitions, which is more intense for the PS-co-P4VP template. This synthetic methodology base on the pyrolysis of polymeric complexes can be considered as a general and straightforward methodology leading to pure and Eu3+-doped nanostructured lanthanide oxide. © 2017 Elsevier B.V.
dc.language.isoen
dc.publisherElsevier B.V.
dc.subjectChitosan
dc.subjectEuropium-doped
dc.subjectLanthanide oxide
dc.subjectPolymer-templated
dc.subjectChitin
dc.subjectChitosan
dc.subjectDoping (additives)
dc.subjectEuropium
dc.subjectLuminescence
dc.subjectMacromolecules
dc.subjectNanostructured materials
dc.subjectParticle size
dc.subjectParticle size analysis
dc.subjectPyrolysis
dc.subjectRare earth elements
dc.subjectSynthesis (chemical)
dc.subjectX ray diffraction
dc.subjectDegree of crystallinity
dc.subjectEuropium-doped
dc.subjectLanthanide oxide
dc.subjectLuminescent intensity
dc.subjectMacromolecular complexes
dc.subjectPoly(4-vinyl pyridine)
dc.subjectSynthetic methodology
dc.subjectTemplated
dc.subjectPolymers
dc.titleSolid-state synthesis of pure and doped lanthanide oxide nanomaterials by using polymer templates. Study of their luminescent properties
dc.typeArticle


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