▎ 摘　　要

NOVELTY - Preparing magnetic graphene aerogel particle electrode, comprises adding 8-15 mg.ml-1 graphene oxide slurry, ferroferric oxide nanoparticles and manganese dioxide nanoparticles into the beaker in the ratio of 1:1-5:1-5, ultrasonically dispersing and mixing evenly, then transferring to hydrothermal synthesis kettle at 120-150 degrees C for hydrothermal synthesis, separating by a magnet, washing the precipitate with deionized water and ethanol, and freeze-drying to obtain magnetic graphene aerogel particle electrode precursor, and thermally reducing in a hydrogen atmosphere at 400-800 degrees C to obtain magnetic graphene aerogel particle electrode. USE - The magnetic graphene aerogel particle electrode is useful for removing chloride ion and total organic carbon (TOC) in the chlorinated propylene glycol wastewater and external magnetic field. ADVANTAGE - The magnetic graphene aerogel particle electrode has excellent catalytic activity, and excellent removal effect on the chloride ion and total organic carbon in the chlorinated propylene glycol wastewater; and is convenient for repeated use, and has strong stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for magnetic graphene aerogel particle electrode obtained by above method.