▎ 摘　　要

NOVELTY - Environmentally friendly adsorbent, comprises 35-50 pts. wt. modified kaolin, 10-20 pts. wt. calcium oxide, 3-5 pts. wt. montmorillonite, 5-10 pts. wt. graphene oxide, 100-150 pts. wt. deionized water, 1-3 pts. wt. acetic acid, 1-3 pts. wt. chitosan and 0.5-1 pt. wt. reducing agent, and the environmentally friendly adsorbent is prepared by (i) adding modified kaolin, montmorillonite and graphene oxide into deionized water, and stirring evenly to prepare suspension C, then adding acetic acid and chitosan, continue stirring at a constant speed until it is viscous to obtain mixture D, and (ii) adding reducing agent into the mixed solution D, and stirring at a uniform speed at 100 revolutions per minute until the reducing agent is evenly disperses, then transferring into 75-80 degrees C to dry until the mixture powder is forms, adding calcium oxide and mixing. USE - The environmentally friendly adsorbent is useful for aluminum ions in concentrated alkaline water (claimed). ADVANTAGE - The environmentally friendly adsorbent: utilizes kaolin, which has larger interlayer spacing and pores; and has excellent adsorption performance.