Preparation and photodegradation properties of ZnO/V2C/Fe2O3 ternary composites for MB
High efficiency catalyst technology can be used to treat pollutants in industrial wastewater,but sin-gle-phase catalyst has the problem of narrow response range of visible light.In this paper,ZnO/V2C/Fe2O3 ter-nary photocatalytic composites were prepared by electrostatic self-assembly,and characterized by X-ray diffrac-tion(XRD),scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).Methylene blue dye was used as the target pollutant to study the photocatalytic performance of the ternary composite.The degradation rate of MB dye by ZnO/V2C/Fe2O3 ternary composite is 19.68 times and 21.76 times that of pure ZnO after 120 min irradiation with UV light and visible light,respectively.After the composite Fe2O3 and V2C,the band gap of ZnO is shortened,the excitation response range is extended to the visible region,and there are more specific surface area and more reactive sites,so the photocatalytic performance of ZnO is enhanced.
zinc oxidevanadium carbideheterojunctionphotocatalysismethylene blue
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