| abstract |
A preparation method of magnetic tungsten trioxide composite photocatalyst WO 3 /SrFe 12 O 19 belongs to the field of inorganic nanometer photocatalytic materials. In the present invention, the magnetic matrix SrFe 12 O 19 is first prepared by the hydrothermal method, and then the magnetic composite photocatalyst WO 3 /SrFe 12 O 19 is prepared by the hydrothermal-calcination method. The method of the invention has the advantages of simple preparation process, low energy consumption, easy control and low production cost. The prepared WO 3 /SrFe 12 O 19 composite magnetic photocatalyst has stable magnetic properties and good crystallinity. Under the irradiation of simulated sunlight xenon lamp, in the presence of 5mM H2O2, 0.1g of the prepared composite magnetic photocatalyst degraded 100mL of 10mg/L Rhodamine B solution, and the degradation rate of Rhodamine B in 80min It reached 98.4%, and the degradation rate of Rhodamine B remained above 86.6% after repeated use for 3 times. The use process of the product prepared by the invention is green and environmentally friendly, and has outstanding advantages in the treatment of industrialized organic dye wastewater. |