▎ 摘　　要

NOVELTY - A nanocomposite material, where the raw material comprises: 0.025-0.05 pts. wt. graphene oxide; 0.4-0.8 pts. wt. sodium citrate; 0.1-0.2 pts. wt. iron chloride hexahydrate (FeCl3.6H2O); and 0.16-0.30 pts. wt. urea. USE - A nanocomposite material (claimed). ADVANTAGE - The nanocomposite material can be obtained in an efficient and cost-effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the nanocomposite material, which involves: (1) ultrasonic mixing graphene oxide with ethylene glycol for 3-4 hours; (2) dissolving sodium citrate in ethylene glycol and heating to 60-65 degrees C, allowing to react for 20-30 minutes; (3) at room temperature, adding FeCl3.6H2O and urea to the mixture solution of (2) with strong magnetic stirring, obtaining ferric salt precursor/glycol mixture solution; (4) mixing the solution of (1) and (3) and reacting for 2-3 hours, then moving to a reactor at 200-250 degrees C and reacting for 12-14 hours, followed by natural cooling at room temperature; and (5) centrifuging at 6000-7000 rpm obtaining black precipitate, washing with ethanol, and washing with deionized water, then lyophilizing to obtain the product.