▎ 摘　　要

NOVELTY - Preparing a graphene-based aerogel by (a) ultrasonically processing graphene oxide in ultrapure water, (b) distilling pyrrole monomer solution, (c) adding appropriate amount of iron(III) chloride hexahydrate (FeCl3.6H2O) to deionized ultrasonic dispersion, (d) taking polytetrafluoroethylene (PTFE) lining, adding graphene oxide dispersion and fresh pyrrole monomer, and ultrasonically processing the mixed solution, (e) adding solution into liner, and heating at 180 degrees C for 12 hours, (f) cooling mixture, repeatedly washing, and (f) freeze-drying purified hydrogel. USE - The method is used for preparing graphene-based aerogel for synergistically electrocatalysis of heavy metals and organic compounds in water (claimed). ADVANTAGE - The method synergistically removes high concentration of water, high toxicity, refractory organic pollutants and mixed metal waste water, and is environmentally-friendly. DETAILED DESCRIPTION - Method for preparing a graphene-based aerogel for synergistically electrocatalysis of heavy metals and organic compounds in water, involves (a) ultrasonically processing 200 mg graphene oxide in 100 ml ultrapure water with an ultrasonic cell disruptor for 10 hours to obtain uniformly dispersed graphene oxide solution for later use, (b) distilling pyrrole monomer solution under reduced pressure, evacuating combined device, wrapping with tin foil package of device to prevent pyrrole from being oxidized again, distilling at 100 degrees C in hot water bath under a nitrogen atmosphere to obtain a fresh pyrrole monomer and allowing to stand in refrigerator, (c) adding appropriate amount of iron(III) chloride hexahydrate (FeCl3.6H2O) to 10 ml deionized ultrasonic dispersion to (FeCl3.6H2O) completely dissolve, (d) taking 25 ml of polytetrafluoroethylene (PTFE) lining, adding 5 ml graphene oxide dispersion and 0.5 ml fresh pyrrole monomer, ultrasonically processing the mixed solution for 10 minutes in the ultrasonic cell disintegrator, and evenly mixing the two solutions, (e) placing liner into the ultrasonic cleaning instrument, and adding FeCl3.6H2O solution into the liner, placing lid into the reactor, until the reaction is stable and heating at 180 degrees C for 12 hours, (f) cooling mixture to room temperature, repeatedly washing reduced graphene polypyrrole hydrogel with ultrapure water and alcohol to remove impurities, and (f) freeze-drying purified hydrogel for 24 hours to obtain polypyrrole/reduced graphene oxide aerogels (PGAs).