The article introduces a high-performance semiconductor material,three-dimensional zinc oxide,which exhibits excellent performance in photocatalytic degradation of macromolecular pollutants after doping with Ce.Flower shaped graded micro nano zinc oxide was prepared using zinc nitrate and sodium hydroxide as raw materials,while Ce was added.The microstructure of the prepared zinc oxide material was characterized and X-ray diffraction analysis was performed,Explore the catalytic ability of the composite zinc oxide material as a photocatalyst..The results showed that zinc oxide participates in the photocatalytic degradation of rhodamine B after doping with 1.2％of Ce,and the degradation rate reaches a maximum of 98.5％after 120 min,which is greater than the 89.1％degradation rate of commercial zinc oxide,and higher than the 81.8％degradation rate of undoped Ce nano zinc oxide photocatalytic degradation of rhodamine B.It can be seen that the catalytic degradation effect of nano-zinc oxide doped with Ce has been significantly improved.Compared to the undoped zinc oxide,the degradation rate of Ce doped zinc oxide is increased by about 20％,and the degradation rate data is still not significantly attenuated after 5 cycles of photocatalytic activity,which indicated that zinc oxide doped with Ce still has high stability and can be used repeatedly and efficiently.
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