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Authors: CRISTINA SOMESAN, LIVIU CALIN BOLUNDUT, LOREDANA OLAR, VASILE POP, LEONTIN DAVID.
DOI: 10.24193/subbchem.2020.2.13
Published Online: 2020-06-30
Published Print: 2020-06-30
pp. 161-170
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ABSTRACT: X-ray diffraction (XRD), Fourier transform infrared (FTIR), electron paramagnetic resonance (EPR), Ultraviolet-visible (UV-Vis) spectroscopies measurements have been employed to investigate the glasses from the (V2O5)x·(KPO3)80-x·(MgO)19·(Ag2O)1 (0 ≤ x ≤ 10 mol%) system. The studied glasses had a fixed MgO and Ag2O content of 19 mol% and 1 mol% respectively, and the V2O5)x:(KPO3 ratio was varied. XRD data confirms the vitreous nature of the studied samples. EPR, UV-Vis and IR data confirm the presence of vanadium in multiple valence states.
Key words: V2O5-MgO- KPO3 glasses, X-ray diffraction, FT-IR, EPR, UV-vis analysis
