Fe3O4@SiO2, PEI, Fluorescence, Adsorption, Desorption, Heavy metal ion
CeO2, Doping, Modification, Oxygen storage capacity, Porous
Nanoparticles, Magnetic, surface modification, removal, regeneration, Heavy metal ion
electrolytic manganese residue, Harmless treatment, Synergistic effect, Manganese-ammonia nitrogen removal, Waste treatment with waste