[email protected]3O4 magnetic nanoparticles were prepared by ultrasonic-assisted method and characterized by TEM, FTIR, XRD, SEM, EDS, BET and VSM. The factors affecting the adsorption properties of uranyl ions by [email protected]3O4 were studied. Results show that the [email protected]3O4 nanoparticles have core–shell structure and superparamagnetism. Under the optimized conditions, the maximum adsorption capacity can reach 229.03 mg/g. The optimum adsorption conditions were as follows: pH = 6, temperature 80 °C, C0 = 35 mg/L, contact time ...
