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Raman spectroscopic study of the uranyl carbonate mineral čejkaite and its comparison with synthetic trigonal Na4[UO2(CO3)3]

“…[7] Uranyl tricarbonate clusters are linked only through bonds to low-valence cations, M + , M 2+ and M 3+ , and hydrogen bonds, if water molecules are present in the structure. [7] Chernorukov et al [8,9] studied synthetic uranyl tricarbonates containing monovalent cations, using thermal analysis and infrared spectroscopy. Li et al [10] and Císarová et al [11] published the X-ray single crystal structure of synthetic trigonal Na 4 [UO 2 (CO 3 ) 3 ], whereas the infrared and Raman spectroscopies of synthetic trigonal Na 4 [UO 2 (CO 3 ) 3 ] were published by Koglin et al [12] and Novitskii et al [13] Infrared spectra and thermal analysis of uranyl minerals [14] , and Raman and infrared spectra of uranyl carbonates [15] were reviewed.…”

Trace Zinc-Preload for Enhancement of Uranium Adsorption Performance and Antifouling Property of AO-Functionalized UHMWPE Fiber

“…The characteristic adsorption peak of CN and COO – both have a slight blue shift to around 1662 and 1580 cm –1 , respectively. This would imply that these functional groups may take part in the uranium chelating. , The adsorption peak with enhanced intensity near 930 cm –1 of AO fiber was assigned to N–O and UO 2 2+ vibrations, , giving an evidence for the coordination of AO ligand to uranyl ions.…”

Reaction of CO2 with UO3 Nanoclusters

“…Exposure of UO 2 to O 2 has been shown to oxidize the surface to form UO 3 or UO 3 hydrates in humid conditions. UO 3 may be converted into uranyl carbonate when exposed to CO 2 under aqueous conditions …”