Preparation method of uranium-based magnetic separation visible-light-driven photocatalyst with super-large conjugated structure

The invention discloses a preparation method of a uranium-based magnetic separation visible-light-driven photocatalyst with a super-large conjugated structure, and relates to the technical field of catalyst preparation and environmental sewage treatment.The preparation method comprises the following steps that 1, Fe3O4 nanoparticles with a spherical structure are synthesized, specifically, ferric trichloride hexahydrate, trisodium citrate and anhydrous sodium acetate are added into ethylene glycol, and the mixture is stirred to be uniform; further preserving heat for 10 hours under high-temperature and high-pressure conditions, and naturally cooling to room temperature to obtain magnetic Fe3O4 nanoparticles with spherical structures; 2, synthesis of a magnetic photocatalyst: taking the magnetic Fe3O4 nano particles as a magnetic core, and realizing self-assembly of an organic ligand and a metal node on the magnetic Fe3O4 nano particles at high temperature and high pressure to prepare a Fe3O4 composite nano ca