Metal-organic framework CAU-17 derived Bi/BiVO4 photocatalysts for the visible light-driven degradation of tetracycline hydrochloride

The hexagonal Bi/BiVO4 was synthesized from the metal-organic framework CAU-17 by derivatization and in-situ reduction. The synthesized Bi/BiVO4 were analyzed by XRD, XPS, SEM, HRTEM, UV–vis spectra, transient photocurrent, and photodegradation tests, and the results indicated that the light-absorbing ability in the visible light region and photoelectron separation ability were enhanced after derivation. Bi/BiVO4 could degrade 92.0% of tetracycline hydrochloride (TCH) under visible light irradiation for 120 min and remain stable after 5 cycles. This might be the joint effect of localize plasma resonance effect (LSPR) and heterogeneous structure between Bi and BiVO4.