Fig. 1

SEM images of ZnIn2S4 (a) and Fe3O4- ZnIn2S4 (b), TEM image (c), DLS analysis (d), BET measurement (e), BJH analysis (f), FTIR spectrum (g), XRD pattern (h) and VSM characterization (i) of catalyst.

SEM images of ZnIn2S4 (a) and Fe3O4- ZnIn2S4 (b), TEM image (c), DLS analysis (d), BET measurement (e), BJH analysis (f), FTIR spectrum (g), XRD pattern (h) and VSM characterization (i) of catalyst.