▎ 摘　　要

NOVELTY - Preparing graphene core-shell structure iron oxide nanoparticle composite material involves ultrasonically cleaning foam nickel in ethanol or acetone solution, then ultrasonically cleaning in the mixed solution of glacial acetic acid and ethanol, ultrasonically cleaning in ethanol or acetone solution, drying in vacuum oven box, placing metal organic framework deuteroferrocene and foam nickel respectively the temperature zone 1 and temperature zone 2 in the double-temperature zone physical chemical vapor deposition furnace, carrying out physical chemical vapor deposition, firstly vacuumizing the furnace for 20-30 minutes before heating, starting high pure argon gas, where the gas flow rate is 30-100 ml/minutes, then raising the temperature of the temperature area 2 to 480-550℃, raising the temperature of the temperature area 1 to 100-250℃. USE - Method for preparing graphene core-shell structure iron oxide nano-particle composite material used in sewage treatment adsorbent and lubricant additive (claimed). ADVANTAGE - The method has good anti-attrition effect, high-efficiency nano lubricating oil additive, in simple manner. DETAILED DESCRIPTION - Preparing graphene core-shell structure iron oxide nanoparticle composite material involves ultrasonically cleaning foam nickel in ethanol or acetone solution, then ultrasonically cleaning in the mixed solution of glacial acetic acid and ethanol, ultrasonically cleaning in ethanol or acetone solution, drying in vacuum oven box, placing metal organic framework deuteroferrocene and foam nickel respectively the temperature zone 1 and temperature zone 2 in the double-temperature zone physical chemical vapor deposition furnace, carrying out physical chemical vapor deposition, firstly vacuumizing the furnace for 20-30 minutes before heating, starting high pure argon gas, where the gas flow rate is 30-100 ml/minutes, then raising the temperature of the temperature area 2 to 480-550℃, raising the temperature of the temperature area 1 to 100-250℃, keeping the temperature for 2-4 hours. The temperature zone 1 is closed, temperature zone 2 cooled to 300-400℃, slowly introduced hydrogen saturated with water through the gas washing bottle, kept the temperature for 3-6 hour, cooled to 100℃, slowly cooled to room temperature under large atmosphere to obtain product.