▎ 摘　　要

NOVELTY - Synthesis of anionic polyaspartic acid (PASP) functionalized magnetic nanohybrid comprises preparing graphene oxide by modified Hummers method by adding oxidized multiwalled carbon nanotubes (o-MWCNTs) powder and graphene oxide dispersion to solvent, sonicating, removing precipitate by centrifugation to obtain uniform dispersion of GO-(o-MWCNTs) complex; preparing magnetic GO-(o-MWCNTs)-cobalt ferrite nanocomposites by dissolving ferric chloride hexahydrate and cobalt chloride hexahydrate in deionized water, adding GO-(o-MWCNTs) composite dispersion under inert gas protection, heating, ultrasonically adding alkaline solution, reacting at constant temperature, mixing, reacting at room temperature, and washing until neutral; and weighing PASP powder, taking GO-(o-MWCNTs)-CoFe2O4 suspension, adding activator to four-necked flask, reacting at room temperature, separating mixture by centrifugation, and washing with deionized water until solution is near neutral. USE - The method is used for synthesizing anionic polyaspartic acid functionalized magnetic nanohybrid. ADVANTAGE - The nanohybrid has good biological degradability, large amount of amido and carboxyl, and rich adsorption sites. The adsorption material has large adsorption capacity, fast adsorption equilibrium, easy separation, wide absorption range, and good water solubility and stability.