Enhanced sulfadiazine degradation through synergistic visible light assisted peroxymonosulfate activation using a magnetic Fe₃O₄-ZnIn₂S₄ catalyst

Characterization of catalyst

The morphology of ZnIn₂S₄ before and after modification was investigated by SEM analysis. As shown in Fig. 1a, the pristine ZnIn₂S₄ exhibited a flower-like microsphere (1–3 μm) composed of ultrathin, cross-linked…