▎ 摘　　要

NOVELTY - A graphene amphiphilic nanomaterial is graphene oxide grafted with oleophilic carbon chain. USE - The graphene amphiphilic nanomaterial is used for purifying petroleum polluted soil (claimed). ADVANTAGE - The method is simple, easy, energy-saving, environment-friendly and good for industrial batch processing of petroleum polluted soil, and recycles graphene amphiphilic nanomaterial and water. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) repairing dispersion for purifying petroleum polluted soil comprising graphene amphiphilic nanomaterial powder, sodium dodecyl sulfate, polyoxyethylene sorbitan monooleate, sodium dodecyl benzene sulfonate and water; and (2) purifying petroleum polluted soil using repairing dispersion comprising mixing graphene amphiphilic nanomaterial powder with sodium dodecyl sulfate, polyoxyethylene sorbitan monooleate, sodium dodecyl benzene sulfonate and water, stirring to prepare repairing dispersion, taking petroleum polluted soil, adding repairing dispersion, second stirring to form repairing dispersion-polluted soil mixed system, centrifuging and separating mixed system to obtain petroleum desorption liquid, second centrifuging, layering oil and water in petroleum desorption liquid to form oil phase and water phase, and separating oil water, recycling water phase and oil phase to realize soil repairing.