▎ 摘　　要

NOVELTY - A nano hybrid material is prepared by modifying graphene oxide using 3-O-methyl gallic acid to obtain reduced graphene oxide, coating manganese ferrite composite material through chemical coprecipitation method to obtain reduced graphene oxide-based composite material, mixing reduced graphene oxide-based composite material and fiber raw materials, and electrostatic spinning. USE - The method is used for preparing nano hybrid material in sewage treatment (claimed). ADVANTAGE - The product has strong pollution resistance, absorbs heavy metal ion in sewage, and prevents organic contamination and biological contamination on rGO surface. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for reducing concentration of arsenic in aqueous medium containing arsenic comprising contacting aqueous medium with nano hybrid material, and adsorbing arsenic on nano hybrid material.