Fig. 5: Electrochemical removal of uranium by Ga-Nx-C in a simulated LMW solution.
From: Secondary metal ion-induced electrochemical reduction of U(VI) to U(IV) solids
a In situ Raman spectra collected from a Ga-Nx-C/carbon felt working electrode in ~100 ppm uranium-spiked cerous nitrate solution. b In situ Raman spectra collected from the Ga-Nx-C/carbon felt working electrode in ~100 ppm uranium-spiked potassium nitrate solution. c Uranium extraction under LMW conditions, using Ga-Nx-C as an electrocatalyst. d Concentration changes of various ions before and after uranium extraction under LMW conditions, using Ga-Nx-C as the electrocatalyst. e PXRD pattern of the electrocatalytically generated products under LMW conditions. f SEM image of Ga-Nx-C after uranium extraction under LMW conditions. g Ga 2p XPS spectrum after uranium extraction under LMW conditions. h Large-scale extraction of uranium from spiked groundwater by the Ga-Nx-C electrocatalyst. i Concentration changes of various ions before and after uranium extraction from spiked groundwater, using Ga-Nx-C as the electrocatalyst.
