ZIF-67/BiOCl Z-Scheme Heterojunction Photocatalyst for Photodegradation of Organic Dyes and Antibiotics

Z-scheme heterojunction photocatalysts with excellent redox capability show great potential in the field of environmental remediation. In this research, ZIF-67 and BiOCl were used to construct metal–organic framework (MOF)-based heterostructures, which effectively achieved 97.4% rhodamine B (RhB) degradation and 78.2% tetracycline (TC) degradation under visible light irradiation. The cyclic experiments displayed that 15% ZIF-67/BiOCl remained structurally stable after 4 cycles. Reactive species trapping demonstrates that 1O2 and ·O2– were mainly responsible for RhB and TC degradation, which were inoculated with EPR results. This work also reveals the degradation path and mechanism of heterojunction, which provides insight into the synthesis of superior photocatalysts for environmental remediation.