The photocatalytic activity of MoS2 electrodes under sunlight illumination

This dataset contains the results of the photocatalytic activities of the MoS2 and MoS2 modified by SnO2 were assessed through the photocatalytic reduction of Cr6+ under the sunlight illumination. In the experiment, 20 mg of the catalyst was distributed in the K2Cr2O7 aqueous solution (50 mL, 100 mg•L-1). The mixed solution was stirred for 30 min to reach adsorption equilibrium in the darkness. The concentration of Cr(VI) before and after illumination (30 and 60 min respectively) was determined by cyclic voltammetry. The electrochemical studies were conducted using an AutoLab PGStat 302N potentiostat–galvanostat system (Methrom, Autolab) in the standard three-electrode assembly, where GC served as a working electrode. The Pt mesh was used as a counter electrode, while Ag/AgCl/0.1 M KCl as a reference electrode.