▎ 摘　　要

NOVELTY - A carbon-based polymer composite aerogel comprises a three-dimensional porous structure comprising graphene oxide, carbon nanotubes and polymer base material. The polymeric base material is obtained by homopolymerization of microcrystalline cellulose, carboxymethyl cellulose or isosorbide, or pyrrole, acrylonitrile, acrylamide, sodium alginate, galacturonic acid and/or acrylate. USE - Carbon-based polymer composite aerogel used for analyzing smoke gas and for improving adsorption of phenol, alkene, ketone and nicotine (all claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) the preparation method of carbon-based polymer composite aerogel, which involves dispersing 1 pt. wt. graphene oxide and 0.1-0.3 pt. wt. oxidized carbon nanotubes in a solvent, ultrasonically dispersing for 10-30 minutes, obtaining a homogeneous suspension using carbon-based material, adding 1-3 pts. wt. polymeric base material, 0.02-0.05 pt. wt. initiator and 0.002 pt. wt. crosslinking agent to resulting suspension, uniformly mixing to obtain 3-10 mg/ml mixed solution at 60-100 degrees C for 2-10 hours, obtaining carbon-based polymer composite hydrogel. The initiator is ammonium persulfate, hydrogen peroxide/iron(II) chloride, or potassium persulfate/iron(II) sulfate. The crosslinking agent is natural biological material genipin, obtaining carbon-based polymer composite hydrogel, washing with deionized water and ethanol, drying at -40-60 degrees C at the vacuum degree of 0.5-2.5 kPa for 10-24 hours, obtaining carbon-based-polymer composite aerogel, washing polymer composite hydrogel with deionized water and/or ethanol, drying in supercritical carbon dioxide system. The ionic liquid solvent is water, ethanol, tert-butanol, and acetic acid solution; and (2) the application of carbon-based polymer composite aerogel in smoke gas analysis.