Preparation of ZnSnO3/g-C3N4 Catalyst and its Photocatalytic Degradation Performance
Human survival and social development have been seriously affected by water pollution.In order to solve this problem,photocatalysts are used to treat pollutants in water.A hydrothermal method was chosen to prepare a new photocatalyst used graphite-phase carbon nitride(g-C3N4)as a carrier,doped with a small amount of ZnSnO3 to reduce the contaminant content in water,and the optimum conditions for the preparation of this catalyst were investigated.The photocatalytic activity of ZnSnO3/g-C3N4 catalyst was found to be the best when the amount of doping was 10%,the reaction temperature was controlled at 150℃ and the reaction time was 4 hours.When 80 mg of the catalyst was added to 10 mg/L rhodamine B solution,the degradation rate of rhodamine B reached 83.61%when the photocatalytic reaction time was 100 min.The morphological and composition characteristics of ZnSnO3/g-C3N4catalyst were detected by scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD)and BET.