▎ 摘　　要

NOVELTY - Preparing graphene nanofluids comprises immersing graphene precursor in solvent and pre-mixing to obtain a mixture, and placing the mixture in a microwave reactor with ultrasonic function, carrying out microwave heating liquid phase exfoliation to obtain a suspension of graphene particles, and adjusting appropriate pH to further promote particle dispersion under the action of intermittent ultrasonic cavitation effect. USE - The method is useful for preparing graphene nanofluids by microwave-coupled ultrasonic one-step method. ADVANTAGE - The method not only has good peeling effect graphene avoids the use of the chemical reducing agent in the preparation process, but also shortens the preparation period of the whole graphene the nano-fluid, high efficiency, saving energy, simple operation, green and no pollution, more accords with the environment-friendly requirement of double carbon background. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a device for preparing the graphene nano-fluid by microwave coupling ultrasonic one-step method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a device for preparing graphene a microwave-coupling. 1Ultrasonic probe 2Precursor powder 3Built-in microwave radiation device 4Control panel 5Shell 6Temperature measuring probe and system adjusting valve 7Solvent 8Microwave rotating base 9Reactor liner 10Heat radiating window 11Cover body