Study on Photocatalytic Degradation of Rhodamine B Using Red Mud Based Composite Catalysts
7％g-C3N4/RM composite photocatalyst and the 7％GO/RM composite photocatalyst were prepared by loading g-C3N4 and graphene on red mud with hydrothermal,respectively.The light absorption performance of the red mud based composite photocatalyst was characterized by X-ray diffraction(XRD),fully automatic surface area and porosity analysis(BET),and UV Vis diffuse reflectance spectroscopy(DRS).The photocatalytic degradation of Rhodamine B was used as a characteristic test to evaluate its photocatalytic performance.The degradation rate of Rhodamine B by red mud based composite catalyst loaded with graphene oxide reached 65.4％.The UV Vis visible absorption spectrum results show that the absorption range of the red mud based catalyst loaded with GO has been expanded from 570 nm to greater than 800 nm,indicating that the composite improves the absorption of visible light.The catalyst loaded with g-C3N4 exhibits better catalytic activity.
red mudcomposite catalytic materialsphotocatalysisdegradation rateorganic pollutants
万方数据
维普
