Preparation method of Fe framework-graphene gas diffusion electrode

The invention relates to a preparation method of a Fe framework-graphene gas diffusion electrode, and belongs to the technical field of preparation of gas diffusion electrodes. The Fe framework-graphene gas diffusion electrode comprises the preparation processes: mixing powder active carbon, deionized water and absolute ethyl alcohol to obtain a mixed solution; doping NH4HCO3 into the mixed solution, and then adding PTFE emulsion into the mixture to out ultrasonic oscillation; putting into the mixture to form a sticky state and adhering the sticky mixture on an iron net; and pressing into the gas diffusion electrode on an oil press machine. The Fe framework-graphene gas diffusion electrode prepared by the invention has good conductivity performance and also has excellent electric-Fenton catalytic activity. The electrode used as a cathode material is applied to an electric-Fenton system, so that the electrode has a good electric catalytic performance; and moreover, a pH value range through the electric-Fenton