▎ 摘　　要

NOVELTY - The method for preparing graphene-based aerogel, involves (i) ultrasonically processing graphene oxide in ultra-pure water to obtain decentralized graphene oxide solution, (ii) distilling pyrrole monomer solution under reduced pressure, and distilling to obtain fresh pyrrole monomer, (iii) adding ferric chloride hexahydrate to deionized and dispersing, (iv) taking PTFE liner, adding graphene oxide dispersion and fresh pyrrole monomer, ultrasonically processing and uniformly mixing, (v) placing liner into ultrasonic cleaner, pouring ferric chloride hexahydrate solution into the liner. USE - Method for preparing graphene-based aerogel for synergistically adsorbing heavy metals and organic compounds in water. ADVANTAGE - The aerogel adsorbent has excellent adsorption property, wider pH range and excellent stability, and achieves synergistic adsorption high concentrated and high toxicity substances in water, non-degradable heavy organic pollutants and metal mixed wastewater, and does not produce secondary pollution. DETAILED DESCRIPTION - The method for preparing graphene-based aerogel, involves (i) ultrasonically processing 200 mg graphene oxide in 100 ml ultra-pure water with an ultrasonic cell disruptor for 10 hours to obtain decentralized graphene oxide solution, (ii) distilling pyrrole monomer solution under reduced pressure, evacuating a combination device, wrapping with tin foil package, preventing the pyrrole from being oxidized again, and distilling in a 100 degrees C hot water bath under nitrogen protection to obtain fresh pyrrole monomer, (iii) adding appropriate amount of ferric chloride hexahydrate to 10 ml deionized, dispersing ferric chloride hexahydrate to completely dissolve, (iv) taking 25 ml PTFE liner, adding 5 ml graphene oxide dispersion, then adding 0.5 ml fresh pyrrole monomer, ultrasonically processing with the ultrasonic cell disruptor for 10 minutes, and uniformly mixing the two solution, (v) placing the liner into ultrasonic cleaner, pouring ferric chloride hexahydrate solution into the liner under the ultrasonic condition, and when the reaction is stable, placing the liner cover into a reactor, and heating at 180 degrees C for 12 hours, (vi) cooling the reactor to room temperature, repeatedly cleaning the reaction product reduced graphene oxide polypyrrole hydrogel with ultra-pure water and alcohol and removing impurities and (vii) freeze-drying the purified hydrogel for 24 hours to obtain polypyrrole/reduced graphene oxide aerogel.