▎ 摘　　要

NOVELTY - A GO/barium sulfate shell bionic composite two-dimensional film material preparing method involves dipping the metal net in the graphene oxide and sodium sulfate mixed solution, after dipping, into distilled water to rinse, drying, immersing dried product in barium chloride solution to react, after finishing reaction, soaking in distilled water to rinse, drying, and repeating to obtain product. USE - Method for preparing GO/barium sulfate shell bionic composite two-dimensional film material for separating oil-water mixture (claimed). ADVANTAGE - The method enables preparing two-dimensional film material without waste created, in simple, cost effective and environment-friendly manner.