▎ 摘　　要

NOVELTY - Graphene-like carbon nitride/ferro ferric oxide/polyaniline nano composite absorbing material is characterized by porous graphene carbon nitride as a carrier, magnetic nano particle ferro ferric oxide and conductive polymer polyaniline as a coating layer. USE - Graphene-like carbon nitride/ferro ferric oxide/polyaniline nano composite absorbing material. ADVANTAGE - The graphene-like carbon nitride/ferro ferric oxide/polyaniline nano composite absorbing material adopts polyol method to use g-C3N4 as a carbon source, Fe(acac)3 as an iron source, heats under reflux condition to obtain g-C3N4/Fe3O4, has uniformity, dispersibility, good magnetic responsiveness and excellent absorbing property, shows maximum peak value of reflection loss (RLmin) of 50dB when the material thickness is 2-4mm, adjusts thickness of nanocomposite absorbing material and paraffin mixed materials to (2-4mm), and reaches effective absorption band of RLmin less than 10dB to 7GHz. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a graphene-like carbon nitride/ferro ferric oxide/polyaniline nano composite absorbing material, which involves: (A) putting urea in a static air at a temperature of 500-600 degrees C for 2.5-5 hours, washing and drying it to obtain a graphene-like carbon nitride; (B) placing obtained graphene-like carbon nitride in triethylene glycol, reacting it under ultrasonic condition for 0.5-1 hours, adding iron acetylacetonate, and reacting under ultrasonic bath for 1-2 hours to obtain a uniform suspension; (C) preparing suspension under nitrogen protection, heating it slowly to 287-290 degrees C under reflux condition for 0.5-2 hours, and subjecting it to magnetic separation and vacuum drying to obtain graphene-like carbon nitride/ferro ferric oxide; and (D) dispersing graphene-like carbon nitride/ferric oxide in a mixed solution of ethanol and deionized water, adding aniline monomer, stirring in an ice water bath for 30-60 minutes, adding initiator dropwise to reaction system, stirring under an ice water bath for 12-24 hours, washing and drying it to obtain a final product.