Preparation of Gd Doped TiO2 Photocatalyst and Study on their Visible Light Photocatalytic Activity
Gd2O3-TiO2 photocatalyst were prepared by the Sol-gel method,and its phase structure were characterized by SEM,EDS,XRD and IR.Using Rhodamine B as target pollutants,their visible light photocatalytic activity in dye wastewater were studied.The re-sults indicate that Gd is incorporated into the TiO2 structure as gadolinium trioxide,forming a strong bond with the TiO2 surface.Addi-tionally,the sample surface exhibits a significant presence of hydroxyl groups,which enhances its photocatalytic capability for pollutant degradation.