▎ 摘　　要

NOVELTY - The preparation method of multilayer graphene carbon material involves cleaning feather, placing feather in a tubular furnace, heating the feather at high temperature to obtain carbonized feather, cooling carbonized feather, washing carbonized feather with ethanol and deionized water and then drying to obtain feather powder, mixing feather powder with alkali, dissolving the mixed material in ethanol, the placing in a reactor and roasting in a tube furnace to obtain preliminary sample, separately washing preliminary sample with hydrochloric acid and distilled water, and finally drying. USE - The method is useful for preparing multilayer graphene carbon material, which is useful for adsorbing and removing tetracycline (claimed) from wastewater. ADVANTAGE - The method enables rapid preparation of multilayer graphene carbon material with high efficiency in an environmentally-friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for multilayer graphene carbon material prepared by the method.