▎ 摘　　要

NOVELTY - Preparation of recyclable titanium dioxide (P25)/graphene/ternary iron oxide photocatalytic material involves dissolving ferric salt in ethylene glycol, adding titanium dioxide (P25)/graphene binary composite material, placing the mixed solution in an ultrasonic oscillator and mixing, adding the resultant mixed solution into a sealed reactor, adding ammonia, mixing, washing, centrifuging and vacuum-drying obtained solid. USE - Preparation of recyclable titanium dioxide (P25)/graphene/ternary iron oxide photocatalytic material (claimed). ADVANTAGE - The method enables preparation of photocatalytic material having high photocatalytic efficiency, strong magnetism, stable performance and excellent recyclability. DETAILED DESCRIPTION - Preparation of recyclable titanium dioxide (P25)/graphene/ternary iron oxide photocatalytic material involves weighing 1-5 mg graphene oxide using electronic balance, uniformly mixing 30 mL ethanol and water in a volume ratio of 1:1-2:1, adding 0.8-1.4 g commercial titanium dioxide (P25) powder, stirring uniformly using magnetic stirrer for 1-2 hours, placing the mixed solution in a sealed reactor, reacting at 80-120 degrees C for 1-3 hours, hydrothermally washing using distilled water, centrifuging to remove unreacted material, vacuum-drying obtained solid at 60 degrees C for 6-8 hours in an oven to obtain titanium dioxide (P25)/graphene binary composite material, weighing 0.2-0.6 g ferric salt such as ferric nitrate or ferric chloride using electronic balance, dissolving the salt in 10-20 mL ethylene glycol, adding predetermined amount of titanium dioxide (P25)/graphene binary composite material, where the concentration ratio of titanium dioxide (P25)/graphene binary composite material and ironion is 0.5:1-2:1, placing the mixed solution in an ultrasonic oscillator and mixing for 1-3 hours, adding the resultant mixed solution into a sealed reactor, adding 5-15 mL ammonia, mixing at 120-1800 degrees C for 8-12 hours, washing with ethanol and distilled water, centrifuging to remove unreacted material and vacuum-drying obtained solid at 60-80 degrees C for 4-8 hours.