▎ 摘　　要

A sustainable strategy for the determination of Uranium has been suggested. More concretely, Ag nanodendrites/reduced graphene oxide (AgNDs/ERGO) nanocomposite film was prepared and used as an additive for UO22+ reduction, resulting in enhanced significant electrocatalytic performances. The nanocomposite film was prepared via an electrodeposition method and characterized by scanning electron microscopy (SEM), energy-dispersive spectrometer (EDS) and X-ray diffraction (XRD). Electrochemical impedance spectroscopy results show the AgNDs/ERGO modified electrode has lower charge transfer resistance and the cyclic voltammetry results confirm the AgNDs/ERGO modified electrode exhibits excellent electrocatalytic activity compared to the AgNDs and ERGO modified electrode. The fabricated electrode exhibits linear responses of UO22+ the over ranges of 1 x 10(-6) -2 x 10(-4) mol L-1, and the sensitivity and detection limit are calculated as 0.338 mu A cm(-2) mu M-1 and 85 mu M.