Ternary metal conjugated ZIF-67 coordination with Ag and Ce for the efficient Fenton-like remediation of dyes under visible light

Abstract

The dye pollution of wastewater has resulted in substantial disturbances in the aquatic environment and photosynthetic activity. Here, ZIF-67, Ag, and Ce were employed to design a metal-organic framework (AgCe@ZIF-67) by one pot and post auto-combustion method for efficient degradation of Rhodamine B (RhB) and Crystal violet (CV) dyes from water. The fabricated materials were affirmed by X-rays diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDS), Fourier transform infrared (FTIR), Photoluminescence (PL) and Electrochemical impedance spectroscopy (EIS). The Fenton assisted composite, AgCe@ZIF-67. b displays extraordinary catalytic performance to degrade 94% of RhB and 96% of CV dye solutions within 50 and 109 min, respectively. The boosted degradation efficiency is ascribed to the promulgation of metallic nodes of Ag and Ce material, promoting accessible active sites that result in production .OH and .O2 are primary reactive oxygen species. Besides, the AgCe@ZIF-67 also showed better reusability and stability even after multiple degradation cycles. The optimized material AgCe@ZIF-67 is expected to provide a better alternative for Fenton assisted photocatalytic degradation of dye from water.