▎ 摘　　要

NOVELTY - Preparing magnetron graphene-based micro-nano motor comprises (a) mixing ferric chloride crystal powder with deionized water to configure ferric chloride solution, (b) completely immersing carbon-based microspheres in ferric chloride solution and taking out, and attaching the carbon-based microspheres with ferric chloride solution to the surface are heated until ferric chloride crystallizes on the surface of the carbon-based microspheres to obtain ferric chloride-carbon-based microspheres, and (c) placing the ferric chloride-carbon-based microspheres in the vacuum chamber and continue to heat until the vacuum chamber no longer contains water molecules, continuously pumping out the gas in the vacuum cavity and continuously introducing oxygen, and laser-treating the ferric chloride-carbon-based microspheres with a laser in an oxygen-rich environment. USE - The method is useful for preparing magnetron graphene-based micro-nano motor. ADVANTAGE - The method is simple and has strong operability, improves the specific surface area and porosity of the micro-nano motor, and can realize a variety of different heavy metal ions in water and active adsorption of organic pollutants. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for magnetron graphene-based micro-nano motor prepared by above mentioned method.