▎ 摘　　要

NOVELTY - Electro-catalyzing degradation of cephalosporin by a nitrogen-doped graphene aerogel electrode comprises e. g. (i) preparing nitrogen-doped graphene aerogel electrode material; (ii) grinding the prepared nitrogen-doped graphite aerogel electrode material into a powder having particle size of 150-200 mesh, taking polytetrafluoroethylene as binder, nitrogen-doped graphene aerogel and acetylene black and physical vapor deposition material in a mass ratio of F=8:1:1, taking dimethylacetamide as solvent, stirring, applying to carbon paper, placing the coated carbon paper in oven at 80 degrees C, drying for 10 hours, taking the blank carbon paper with un-coated material as the cathode and using the silver/silver chloride electrode as the reference electrode; and (iii) preparing the cephalosporin in electrochemical reactor. USE - The method is useful for electro-catalyzing degradation of cephalosporin by a nitrogen-doped graphene aerogel electrode. ADVANTAGE - The method improves the active site and catalytic capacity of the material, and improves removal rate of cephalosporin and reduces running cost and is suitable for removal of cephalosporin antibiotic in water body. DETAILED DESCRIPTION - Electro-catalyzing degradation of cephalosporin by a nitrogen-doped graphene aerogel electrode comprises (i) preparing nitrogen-doped graphene aerogel electrode material; (ii) grinding the prepared nitrogen-doped graphite aerogel electrode material into a powder having particle size of 150-200 mesh, taking polytetrafluoroethylene as binder, nitrogen-doped graphene aerogel and acetylene black and physical vapor deposition material in a mass ratio of F=8:1:1, taking dimethylacetamide as solvent, stirring, applying to carbon paper, placing the coated carbon paper in oven at 80 degrees C, drying for 10 hours, taking the blank carbon paper with un-coated material as the cathode and using the silver/silver chloride electrode as the reference electrode; (iii) preparing the cephalosporin in electrochemical reactor, where the concentration of the cephalosporin is 1-20 mg/l; and (iv) turning on the power switch, setting the current density to 2-5 mA/cm2 and performing the sampling test to determine the removal rate of cephalosporin.