▎ 摘　　要

NOVELTY - Preparing adsorbent involves weighing 2-15g polyether diglycidyl ether monomer and adding 20-80ml solvent to completely dissolve monomer to obtain a solution (A). The 1.2-2.5g polyhydric amine monomer is dissolved in 10-30ml solvent to obtain solution (B) at 20-45 degrees C. The solution B is added drop-wise to solution A and solution is stirred. The solution is reacted for 24-48 hours. The solution is warmed to 60-90 degrees C for 12-24 hours to obtain a mixture. The obtained mixture is evaporated and then concentrated with a settling agent. The mixture is repeatedly washed. USE - Method for preparing adsorbent used for adsorbing heavy metal and dye (claimed). ADVANTAGE - The method enables to prepare adsorbent in easy and efficient manner. DETAILED DESCRIPTION - Preparing adsorbent involves weighing 2-15g polyether diglycidyl ether monomer and adding 20-80ml solvent to completely dissolve monomer to obtain a solution (A). The 1.2-2.5g polyhydric amine monomer is dissolved in 10-30ml solvent to obtain solution (B) at 20-45 degrees C. The solution B is added drop-wise to solution A and solution is stirred. The solution is reacted for 24-48 hours. The solution is warmed to 60-90 degrees C for 12-24 hours to obtain a mixture. The obtained mixture is evaporated and then concentrated with a settling agent. The mixture is repeatedly washed and the supernatant is discarded. The obtained product is dried under vacuum to obtain a hyperbranched polyetheramine. 0.03-0.07g graphene oxide is mixed with 50-200ml water. the ultrasonic dispersion of solution is carried out for 2 hours. The dispersion is added to 0.6-1.4g hyperbranched polyetheramine and 0.6-1.4g basic catalyst. The mixture is stirred for 10-24 hours. The crude product is isolated by centrifugation and washed multiple times with water. The mixture is centrifuged and the remaining solid is dried and pulverized, to obtain hyperbranched polyetheramine grafted graphene oxide adsorbent. An INDEPENDENT CLAIM is included for a method for removing heavy metal ions or cationic dyes from adsorbent, which involves: (A) adding 50mL cationic dye solution or 80-200mg heavy metal ions in 250ml Erlenmeyer flask; (B) adjusting pH at 2-8 and adding 7-12mg adsorbent; (C) oscillating in water bath at 25-45 degrees C for 1-3 hours; (D) centrifuging the solution and detecting concentration of heavy metal ions or cationic dye remaining after adsorption in the supernatant; and (E) removing heavy metal ions or cationic dyes based on the initial concentration of graphene oxide and adsorption of heavy metal ions in solution or cationic dye.