Fig. 6

Electrochemical behavior measure by cyclic voltammetry. (a) CV curves of g-C3N4, GO, g-C3N4@GO, g-C3N4@r-GO (AA) and g-C3N4@r-GO (NaBH4) at a scan rate of 5 mV/s in 2 M KOH (b) CV curves of g-C3N4@r-GO (AA) at various scan rates (5, 10, 25, 50, 75, 100 mV/s). (c) Variation of specific conductance of samples at different scan rate.