▎ 摘　　要

NOVELTY - A magnetic graphene based titanium dioxide composite material is prepared by dissolving iron(III) chloride hexahydrate into ethanediol, ultrasonically processing to obtain yellow transparent solution, adding graphite oxide, ultrasonically processing, adding anhydrous sodium acetate, ultrasonically processing, placing into stainless steel reaction kettle, putting into drying box, crystallizing, taking out reaction kettle, cooling, washing material with ethanol, and vacuum drying. USE - Method for preparing magnetic graphene based titanium dioxide composite material (claimed). ADVANTAGE - The product has easy separation capacity, good catalytic performance, adsorption and electron transfer, and sets with magnetic graphene and titanium dioxide nanoparticle characteristics. The method is simple, reasonable and easy to implement. DETAILED DESCRIPTION - A magnetic graphene based titanium dioxide composite material is prepared by: (A) dissolving iron(III) chloride hexahydrate into ethanediol, ultrasonically processing to obtain yellow transparent solution, adding graphite oxide, ultrasonically processing for 1 hour, adding anhydrous sodium acetate, ultrasonically processing for 30 minutes, placing into stainless steel reaction kettle, putting into drying box at 200 degrees C, crystallizing for 12 hours, taking out reaction kettle, cooling to room temperature, washing material with ethanol for 6 times, and vacuum drying at 60 degrees C for 12 hours to obtain material; (B) ultrasonically processing material into 2M (30 ml) nitric acid for 10 minutes, washing using deionized water, dispersing into aqueous solution of glucose, adding hexadecyltrimethylammonium bromide, ultrasonically processing for 0.5 hour, acutely stirring (stirring paddle) for 10 minutes, transferring into high pressure kettle, reacting at 180 degrees C for 4 hours, naturally cooling into high pressure kettle air, separating, washing using deionized water and ethanol for 3 times, and drying to 80 degrees C for 4 hours to obtain composite material; and (C) dissolving tetrabutyl titanate (5 ml) into ethanol (35 ml) to form clear solution, ultrasonic wave processing 50 mg composite material for 5 minutes, dispersing, dropwise adding mixed liquid of ethanol and water, stirring for 15 minutes and 2 hours, separating with ethanol, washing, with separating with ethanol/washing/dispersing, processing for 5 times, getting powder, drying into drying box, and sintering under nitrogen atmosphere at 500 degrees C for 3 hours. An INDEPENDENT CLAIM is included for application of magnetic graphene based titanium dioxide composite material comprising preparing 6 pts. wt. of 20 ml rhodamine B solution of different concentration including 0.0005 mM, 0.001 mM, 0.002 mM, 0.005 mM, 0.01 mM and 0.02 mM, adding 0.25 g/L composite material, absorbing in dark position for 30 minutes, starting high pressure xenon lamp (350 W), separating for 5 minutes or 10 minutes, sampling by centrifugal separation, and measuring rhodamine B solution suction absorbance change.