▎ 摘　　要

NOVELTY - Synthesizing PSF (polysulfone) embedded graphene oxide-iron/manganese hybrid beads involves synthesizing graphene oxide sheets by using a definite amount of graphene oxide dissolved in ultrapure water and sonicating in specific characterizing speed and time, dissolving iron chloride hexahydrate and manganese sulfate hydrate salts in the specific ratio to the prepared graphene oxide solution and sonicating for a specific time, preparing 5-15 wt.% graphene solution by dissolving in 100-1000 mL water, followed by sonication for 2-20 minutes at 60-150Hz, dissolving iron chloride hydrate and manganese sulfate hydrate to the prepared graphene oxide solution, where the ratio of iron to manganese is varied from 1:1, 1:2, 2:1, 2:2, heating at 80-120℃ for 60-120 minutes, adding 6-12 M sodium hydroxide drop wise to the solution. The pH of the solution is maintained in the range of 9-12 to form the characterized graphene oxide-iron/manganese hybrid. USE - Method for synthesizing PSF (polysulfone) embedded graphene oxide-iron/manganese hybrid beads used for removal of toxic metals from aqueous solution. ADVANTAGE - None given. DETAILED DESCRIPTION - Synthesizing PSF (polysulfone) embedded graphene oxide-iron/manganese hybrid beads involves synthesizing graphene oxide sheets by using a definite amount of graphene oxide dissolved in ultrapure water and sonicating in specific characterizing speed and time, dissolving iron chloride hexahydrate and manganese sulfate hydrate salts in the specific ratio to the prepared graphene oxide solution and sonicating for a specific time, preparing 5-15 wt.% graphene solution by dissolving in 100-1000 mL water, followed by sonication for 2-20 minutes at 60-150Hz, dissolving iron chloride hydrate and manganese sulfate hydrate to the prepared graphene oxide solution, where the ratio of iron to manganese is varied from 1:1, 1:2, 2:1, 2:2, heating at 80-120℃ for 60-120 minutes, adding 6-12 M sodium hydroxide drop wise to the solution. The pH of the solution is maintained in the range of 9-12 to form the characterized graphene oxide-iron/manganese hybrid. The removal of unreacted reactants and by-products is achieved by washing with excess of water and acetone by dissolving 13-23 wt.% total solution of PSF is in 50-100 mL N-methyl-2-pyrrolidone under constant stirring and at 40-100℃. The polymer is added with 0.5-1.5g graphene oxide/iron-manganese hybrid. The constant mixing is performed for 3-12 hours to form a uniform solution with no visible lumps or unevenness, filled the prepared solution mixture with a disposable syringe needle with specific inner diameter and solution, subjected to extrusion through the needle in the form of discrete, spherical droplets into ultrapure water bath (antisolvent) to start the process of phase inversion wherein the solid beads are kept inside the water bath for 12-36 hours to remove the solvent trapped within the polymer and then dried overnight at 50-90℃. An INDEPENDENT CLAIM is included for a polysulfone (PSF) embedded graphene oxide-iron/manganese hybrid beads, which comprises graphene oxide, bimetallic oxide salts, where the metals preferably includes iron and/or manganese, and polymeric solution, the homogeneous polymer solution includes preferably polysulfone, additive wherein the additive includes polyethylene glycol (PEG-400 or 600 or 1000), 0.05-1.5 wt.% additives and 0.025-1.0 wt.% solvent.