Bimetallic UiO-66-NH2(Zr–Hf) synergistic photocatalytic and piezoelectric effects for the degradation of rhodamine B

) and hydroxyl radicals (˙OH), were identified by free radical scavenging experiments. In addition, the intermediates generated during Rh B degradation were analyzed by HPLC-MS, while a reasonable degradation pathway was presented. Our work utilizes a green and environmentally friendly method to prepare bimetallic MOFs, providing a novel solution for the rapid degradation of highly concentrated dye wastewater.