▎ 摘　　要

NOVELTY - Manufacture of gas-sensitive nanofilm comprises (A) dispersing graphene oxide in first solvent to obtain graphene oxide dispersion solution; (B) dissolving iron-based oxidant dissolved in ultrapure water to obtain iron-based oxidant solution; (C) dispersing iron-based oxidant solution as sub-phase in graphene oxide dispersion solution using gas sensitive device to carry out Langmuir-Blodgett film forming method to obtain graphene oxide-ferrous oxidant film; (D) polymerizing with monomer to obtain graphene oxide/conductive polymer composite film; and (E) subjecting to reduction treatment. USE - Method for manufacture of gas-sensitive nanofilm (claimed). ADVANTAGE - The nanofilm has multilayer structure with excellent gas-sensing properties.