▎ 摘　　要

NOVELTY - A cathode material comprises 65-80 pts. wt. reduced graphene oxide as carrier, 16-28 pts. wt. molybdenum disulfide, 3-12 pts. wt. cerium dioxide and 1-4 pts. wt. zirconium dioxide. USE - Cathode material is useful as cathode in electric Fenton reactor for degradation of ciprofloxacin (claimed). ADVANTAGE - The cathode material provides excellent degradation rate of 100% to ciprofloxacin, is convenient to use, can degrade ciprofloxacin under mild conditions, and can be prepared in simple, easy and economical manner. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of cathode material, which involves dispersing 1 g graphite powder in 21 ml concentrated sulfuric acid, adding 0.5 g sodium nitrate and 4 g potassium permanganate under ice bath conditions, stirring to obtain immersion liquid (A), stirring for 30 minutes, heating at 35 degrees C for 60 minutes, adding 46 ml water, heating at 98 degrees C for 15 minutes, adding 140 ml water and 10 ml 30 wt.% hydrogen peroxide, centrifuging, drying to obtain graphene oxide, dispersing 160 mg graphene oxide in 20 ml water, processing for 2 hours to obtain immersion liquid (B), dissolving 30 mg cerium(III) nitrate hexahydrate and 10 mg zirconium nitrate hexahydrate in 10 ml water, dissolving 37.5 mg thioacetamide and 30 mg sodium molybdate in 10 ml water, placing in reaction vessel, heating at 200 degrees C for 8 hours, cooling and then washing and drying; and (2) degradation of ciprofloxacin, which involves adding ciprofloxacin solution to 100 ml beaker and then mixing, adding anhydrous sodium sulfate as electrolyte, measuring sample absorbance using spectrophotometer under current of 100 mA, aeration rate of 50 ml.minute-1, pH of 3 and concentration of 50 mg.l-1 and processing for 5 hours.