▎ 摘　　要

NOVELTY - The preparation of reducing graphene oxide, tin dioxide and ferric oxide composite material involves carrying out oxidation reaction of natural graphite powder to obtain graphene oxide, carrying out hydrothermal reduction reaction of graphene oxide, tin tetrachloride pentahydrate and hydrochloric acid hexahydrate. USE - Preparation of reducing graphene oxide, tin dioxide and ferric oxide composite material used in microwave absorption (all claimed). ADVANTAGE - The method enables preparation of reducing graphene oxide, tin dioxide and ferric oxide composite material, increases the interfacial polarization ability of the composites, improves impedance matching and attenuation matching of the composite, and improves the performance of microwave absorption. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) reducing graphene oxide, tin dioxide and ferric oxide composite material; and (2) usage of reducing graphene oxide, tin dioxide and ferric oxide composite material in microwave absorption.