▎ 摘　　要

NOVELTY - A graphene wastewater purification material comprises: a component (A) containing 10-20 pts. wt. graphene powder, 2-10 pts. wt. polyacrylamide and 60-80 pts. wt. polyvinylpyrrolidone; a component (B) containing 100-800 mesh fabric, polyester mesh fabric, acrylic fabric, polypropylene fabric, spandex fabric and nylon fabric; a component (C) containing polyurethane sponge, polyvinyl alcohol sponge, melamine sponge, 100-150 pts. wt. absolute ethanol, 5-10 pts. wt. tetraethyl orthosilicate, 2-5 pts. wt. ammonia and 2-3 pts. wt. deionized water; and a component (D) containing a polyvinyl alcohol aqueous solution or a crosslinked polyvinyl alcohol hydrogel prepared by using boric acid, borax and glutaraldehyde as a crosslinking agent. USE - Graphene wastewater purification material. ADVANTAGE - The graphene wastewater purification material is convenient to use, can carry out large-range oil-water separation, does not require post-treatment on the filter screen after separation, improves analysis efficiency, and has prolonged service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene sewage purification material, which involves: (S1) mixing, stirring and dispersing the component (A) with the components (B) and (D) to prepare a coating liquid; and (S2) selecting the component (B), soaking in the coating liquid at 55-65 degrees C for 60-180 minutes, and after the soaking time is reached, curing the product by natural volatilization drying, vacuum drying, freeze drying and/or oven drying.