▎ 摘　　要

NOVELTY - Preparing self-assembled composite material, comprises mixing carbon material, sulfur powder and red phosphorus to obtain carbon matrix composites, placing carbon-based composite material and carrier into mixed solution to react to obtain final product in which mixed solution is obtained by mixing organic encapsulation modifier and ethanol. USE - The self-assembled composite material is useful for deep purification of heavy metals in water body (claimed); and for advanced treatment of heavy metals in household tap water, natural water and sewage treatment plant water. ADVANTAGE - The self-assembled composite material has high removal efficiency, stable chemical properties, long duration, easy industrial production, and simple purification process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for self-assembled composite material obtained by above method.