“…The photoinduced charge separation and transfer efficiency of photocatalysts affect the number of charges participating in the photocatalytic reaction, which is of great importance to the photocatalytic activity. , As shown in Figure a,b, IOBS-3 exhibits a remarkably better photocurrent density of transient photocurrent response curve and linear sweep voltammetry (LSV) curves than that of Bi 2 S 3 and In 2 O 3 , indicating the improved charge separation efficiency of IOBS-3. − In the electrochemical impedance spectroscopy (EIS) Nyquist plots (Figure c), IOBS-3 has a smaller arc radius to Bi 2 S 3 and In 2 O 3 , suggesting the higher charge transfer efficiency of IOBS-3 . In Figure S10, the PL and PLE intensities of IOBS-3 are significantly lower than In 2 O 3 , revealing the lower charge recombination rate of IOBS-3 .…”