▎ 摘　　要

NOVELTY - Hollow spherical iron oxide/graphene composite absorbing material comprises graphene substrate and hollow spherical load iron oxide. USE - Hollow spherical iron oxide/graphene composite absorbing material. ADVANTAGE - The method is environment-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of hollow spherical iron oxide/graphene composite absorbing material comprising grinding graphite oxide, dispersing in ethylene glycol solution, adding ferric salt at ratio of 1:1-20, mixing, adding reducing agent at ratio 1:0.5-2, carrying out redox reaction, heating in TEFLON (RTM: PTFE) autoclave at 120-250 degrees C for 3-24 hours, filtering, washing and drying.