▎ 摘　　要

NOVELTY - Preparation of magnetic hollow graphene-based composite microsphere material involves adding polymer microsphere dispersion to a graphene oxide dispersion, magnetically stirring for 2-5 hours, obtaining a mixed dispersion, adding a metal salt to the mixed dispersion, continuously stirring for 12-24 hours, obtaining a solid product, washing the solid product, drying, placing the resultant product in a protective gas atmosphere, heating to 500-900 degrees C, calcining at high temperature of 2-5 hours, and naturally cooling to room temperature. USE - Preparation of magnetic hollow graphene-based composite microsphere material is used in dye wastewater treatment (claimed). ADVANTAGE - The method enables simple, environmentally-friendly preparation and easy preparation of magnetic hollow graphene-based composite microsphere material. The magnetic hollow graphene-based composite microsphere material enables efficient and rapid adsorption separation of dye wastewater.