▎ 摘　　要

NOVELTY - The method comprises exposing a metal salt-graphite oxide composite to intensified electromagnetic radiation to form a metal/metal oxide nanoparticles dispersed graphene nanocomposite by reducing the metal salt to a metal or metal oxide and the graphite oxide to graphene. The intensified electromagnetic radiation provides 0.65-1.95 W/cm2, and is provided by one of passing electromagnetic radiation through a refractile material, passing the electromagnetic radiation through a converging lens, and reflecting the electromagnetic radiation off of converging mirrors prior to the exposing step. USE - The method is useful for making a metal/metal oxide nanoparticle dispersed graphene nanocomposite (claimed). ADVANTAGE - The method is capable of simply, economically and eco-friendly making the metal/metal oxide nanoparticle dispersed graphene nanocomposite with high aspect ratio and productivity in an energy-effective, time-effective and labor-effective manner. DETAILED DESCRIPTION - The method comprises exposing a metal salt-graphite oxide composite to intensified electromagnetic radiation to form a metal/metal oxide nanoparticles dispersed graphene nanocomposite by reducing the metal salt to a metal or metal oxide and the graphite oxide to graphene. The electromagnetic radiation comprises visible light, sunlight and/or simulated sunlight, selected portion of sunlight, or a combination of the selected portions intensified to suitable power. The intensified electromagnetic radiation provides 0.65-1.95 W/cm2 and causes a temperature increase to 300-400 degrees C. The intensified electromagnetic radiation is provided by one of passing electromagnetic radiation through a refractile material, passing the electromagnetic radiation through a converging lens, and reflecting the electromagnetic radiation off of converging mirrors prior to the exposing step. The exposing step is performed for less than 10 minutes per 100 mg of metal salt-graphite oxide composite. The solid metal salt graphite oxide composite is prepared by: dispersing graphite oxide in a solvent to form a dispersion; adding a metal salt to the dispersion; and drying the resultant material to yield the solid metal salt-graphite oxide composite. The dispersing step comprises dispersing the graphite oxide in the solvent by ultrasonication. The solvent comprises water. The metal salt and graphite oxide are reduced simultaneously. An INDEPENDENT CLAIM is included for a nanocomposite.