Preparation of MIL-53(Fe)/BiOCI composites and its photo-Fenton performance in degradation of 2,4-DCP under visible light

摘要

The MIL-53(Fe)/BiOCl composite catalyst is triumphantly man-made by two-step solvothermal method. The MIL-53(Fe) which possesses nanoscale polyhedral structure is loaded to the surface of BiOCl microspheres. 2,4-DCP is regarded as a simulated pollutant in environmental wastewater, at the same time, H_2O_2 is added into the reaction vessel. The photo-Fenton performance of the composites has been tested. Making use of photo-Fenton effect of H_2O_2 and iron ions under visible light, photo-Fenton effect is used to investigate the photocatalytic degradation efficiency of higher concentration of 2,4-DCP under different conditions. And the photochemical properties of XRD, DRS and SEM as well as the electrochemical properties of PL, PC and EIS are measured. The catalytic mechanism is analyzed by photo-Fenton effect.