▎ 摘　　要

NOVELTY - Three-dimensional electro-Fenton degradation of antiviral drug residues in water involves adding sodium sulfate electrolyte solution, magnetic graphene oxide catalytic particle electrode and water-containing antiviral drug residues to a three-dimensional electro-Fenton reaction vessel, adjusting the electrode plate spacing to 2-6 cm, applying a voltage of 5-30 V, controlling the initial pH value of the three-dimensional electro-Fenton electrolytic cell at 3-11, and aerating to degrade antiviral drug residues in water. The preparation method of the catalytic particle electrode involves: (S1) preparing brown-yellow uniform suspension using montmorillonite and single-layer graphene oxide powder; (S2) preparing black powder using ferric chloride hexahydrate, anhydrous sodium acetate, polyethylene glycol and suspension; and (S3) mixing black powder with polyvinyl alcohol aqueous solution, extruding to obtain a strip, granulating to obtain round particles, freeze-drying, and calcining. USE - Three-dimensional electro-Fenton degradation of antiviral drug residues in water. ADVANTAGE - The method: is simple in operation; ensures high degradation efficiency, wide applicable water pH range, and corrosion resistance; and adopts the magnetic graphene oxide catalytic particle electrode, which is easy to recycle, and can be repeatedly used. DETAILED DESCRIPTION - Three-dimensional electro-Fenton degradation of antiviral drug residues in water involves adding 0.005-0.08 mol/L sodium sulfate electrolyte solution, 5-45 g/L magnetic graphene oxide catalytic particle electrode and water-containing antiviral drug residues comprising 15-25 mg/L antiviral drug to a three-dimensional electro-Fenton reaction vessel, adjusting the electrode plate spacing to 2-6 cm, applying a voltage of 5-30 V, controlling the initial pH value of the three-dimensional electro-Fenton electrolytic cell at 3-11, and aerating at an intensity of 0.4-12 L/minute, which degrades the antiviral drug residues in water. The preparation method of the magnetic graphene oxide catalytic particle electrode involves: (S1) weighing montmorillonite and single-layer graphene oxide powder in a mass ratio of 3:(1-1.5) in a beaker, adding ethylene glycol, and ultrasonically processing to form a brown-yellow uniform suspension; (S2) weighing ferric chloride hexahydrate, anhydrous sodium acetate, and polyethylene glycol in a mass ratio of 1:(3.5-3.8):(1.8-2.2) in the beaker, adding ethylene glycol, mixing, then adding to the suspension obtained in step (S1), stirring, adding the evenly stirred solution to a PTFE high-pressure reaction kettle, heating at 150-250 degrees C for 7-9 hours, washing the obtained black solid several times with ethanol, drying in a vacuum drying oven at 45-55 degrees C for 7.5-8.5 hours, grinding with a mortar, and sieving through an 80-120 mesh sieve to obtain a black powder; and (S3) mixing the black powder with 4 wt.% polyvinyl alcohol aqueous solution according to the mass ratio of (2-2.5):1, extruding to obtain a strip with a diameter of 5-7 mm by using a strip extruder, placing on a pill rolling board for granulation to obtain round particles with a diameter of 5-7 mm, freeze-drying the round particles, and calcining at 550-650 degrees C under nitrogen protective atmosphere for 100-150 minutes to obtain the electrode with a diameter of 4.8-5.5 mm. An INDEPENDENT CLAIM is included for preparation of the magnetic graphene oxide catalytic particle electrode.