Nanostructure and Luminescent Properties of Bimetallic Lanthanide Eu/Gd, Tb/Gd and Eu/Tb Coordination Polymers
نویسندگان
چکیده
This study presents the synthesis, structural and luminescence properties for lanthanide metal–organic frameworks (LnMOFs), which belong to sub-class of coordination polymers. The series nanosized LnMOFs (Ln = Eu, Gd, Tb, Eu0.5Gd0.5, Tb0.5Gd0.5 Eu0.5Tb0.5) was prepared by solvothermal synthesis using a modulator (sodium acetate). We investigated various surface chemistry compositions isostructural with [Ln(btc)] structure (BTC: Benzene-1,3,5-tricarboxylate) X-ray photoelectron spectroscopy (XPS). XPS confirmed mixed-valent Eu3+ Eu2+ compounds, presence Tb in both +3 +4 valence states, one valency Gd. A nanostructure mixed (EuGd, TbGd EuTb) rod-like shape is related properties. MOFs (EuTb EuGd) presented Comission Internationale de l’Éclairage (CIE) chromaticities x 0.666 y 0.331, 0.654 0.348, respectively, red region. They were better than values desired use commercial phosphors, are 0.64 0.35. For [Tb/Gd(btc)], CIE coordinates 0.334 0.562, presenting emissions green Bimetallic very promising UV light sensors biological applications.
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ژورنال
عنوان ژورنال: Inorganics (Basel)
سال: 2021
ISSN: ['2304-6740']
DOI: https://doi.org/10.3390/inorganics9100077