▎ 摘　　要

NOVELTY - A graphene coated ferroferric oxide Fenton series catalyst comprises 1-60 wt.% graphene completely coated with iron(II,III) oxide (Fe3O4) microparticle. The Fe3O4 microparticle has grain diameter of 0.5-5 mu m. The graphene has coating thickness of 2-10 nm. USE - Graphene coated ferroferric oxide Fenton series catalyst. ADVANTAGE - The Fenton series catalyst has low cost, good catalytic efficiency and stability, can be recovered and repeatedly used, and is environment-friendly type material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the graphene coated ferroferric oxide Fenton series catalyst, comprising inorganic iron salt aqueous solution with graphene oxide precursor, spray-drying, sintering and reducing under protective atmosphere to obtain target product.