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.
关键词
赤泥/复合催化材料/光催化/降解率/有机污染物
Key words
red mud/composite catalytic materials/photocatalysis/degradation rate/organic pollutants
维普
万方数据