▎ 摘　　要

NOVELTY - Graphene-based water treatment adsorbent comprises graphene, artificial graphite and ferric oxide. The graphene comprises sheet-shaped graphene sheets. The artificial graphite comprises sheet-shaped artificial graphite sheet. At least a part of the graphene sheets and at least a part of the artificial graphite sheets are arranged sequentially and at least part of the ferric oxide is distributed between the graphene sheets and the artificial graphite sheets arranged in sequence. USE - Used as graphene-based water treatment adsorbent comprising e.g. graphene. ADVANTAGE - The adsorbent has better adsorption capacity, easy recovery and regeneration, stable structure, good flexibility, high mechanical strength and has stable chemical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene-based water treatment adsorbent comprising configuring ferrous salt solution and the ferric salt solution in a ratio of 1:2 to form composite ferric salt solution, where the concentration of ferrous ion is 2-4 mol/l, taking 80-90 pts. wt. artificial graphite, 30-40 pts. wt. graphene oxide, 180-200 pts. wt. ethylene glycol, 100-150 pts. wt. water, 30-40 pts. wt. composite iron salt solution and 2-5 pts. wt. surfactant, mixing artificial graphite, graphene oxide, ethylene glycol, water and surfactant, ultrasonically dispersing to obtain a dispersion liquid, adding the dispersion liquid and the composite iron salt solution into a reactor, adding aqueous ammonia to adjust the pH to alkaline, hydrothermally reacting at 180-200℃ for 8-12 hours, filtering, washing, drying, roasting, refining and sorting to obtain a product with a tap density of 2.5-2.6 g/cm3.