▎ 摘　　要

NOVELTY - Preparing graphene composite adsorbent comprises (i) adding graphite oxide into expanded graphite by microwave processing, (ii) mixing the expanded graphite, 3-amino propyltriethoxy silane and liquid alcohol and ultrasonically processing the mixture to obtain graphene micro sheet, (iii) mixing the graphene micro sheet, carbonyl iron powder and grinding aid agent after ball milling, cooling the product obtained by ball milling, solid-liquid separating and collecting the solid product, washing and vacuum drying the solid product to obtain graphene composite absorbent. USE - The method is useful for preparing graphene composite adsorbent. ADVANTAGE - The composite absorbent has light weight, wide band wave absorbing and has electric performance and magnetic performance, has a specific frequency band electromagnetic wave absorbing function and improves the stealth characteristics of the target. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene composite absorbent, prepared by above method.