▎ 摘　　要

NOVELTY - Preparing waste hair bean shell derived porous carbon-vanadium disulfide composite material comprises (i) pre-processing soybean shell to obtain pre-processed soy bean shell, (ii) heat-treating the pre-treated soy bean shell in inert gas to obtain heat-treated green soy bean shell, (iii) dissolving thioacetamide, ammonium metavanadate and aqueous ammonia in deionized water to obtain mixed solution, and (iv) adding heat treatment hair bean shell into the mixed solution, performing hydrothermal treatment, washing, and drying to obtain the waste hair bean shell-derived porous carbon-vanadium disulfide composite material. The mass ratio of the heat-treatment soy bean shell, thioacetamide, ammonium metavanadate, aqueous ammonia and deionizing water is 1:(7-9):(2-3):(30-35):(165-170). USE - The composite material is useful in electromagnetic wave absorption (claimed), civil or military field, carbon nano-tube, carbon fiber and graphene. ADVANTAGE - The composite material has strong absorption of electromagnetic wave, absorption frequency band width, thin thickness and so characteristics, and has great electromagnetic wave absorption application potential. The method is stable and controllable, simple and easy to characteristics. DETAILED DESCRIPTION - \An INDEPENDENT CLAIM is also included for waste hair bean shell derived porous carbon-vanadium disulfide composite material.