▎ 摘　　要

NOVELTY - Adsorbent based on ferroferric oxide and graphene comprises graphene oxide and ferroferric oxide according to mass ratio of 1:1-8:1. USE - The adsorbent is useful for adsorption of heavy metals (claimed) and other pollutants. ADVANTAGE - The method: is simple; utilizes easily available raw materials, which are economical; and provides green non-toxic product having high adsorption and superparamagnetism properties, and can be quickly separated by an external magnetic field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the adsorbent based on ferroferric oxide and graphene, comprising (i) weighing graphene oxide and ferroferric oxide, adding graphene oxide in deionized water to obtain aqueous solution, and stirring uniformly at room temperature under magnetic force; (ii) adding ferroferric oxide, and fully mixing to obtain a mixed solution containing graphene oxide and ferroferric oxide according to mass ratio of 1:1-8:1, ultrasonically dispersing, then pouring into a reaction kettle, reacting, gradually heating to 180-200 degrees C, maintaining stable temperature, and reacting for 2-3 hours to obtain a product; and (iii) washing the product with deionized water and alcohol, drying at 50-60 degrees C under vacuum condition for 24 hours to obtain the adsorbent.