▎ 摘　　要

NOVELTY - Two-dimensional pH intelligent response film based on graphene oxide comprises adding 4-vinylpyridine in dispersion of graphene oxide nano sheet, carrying out free radical polymerization reaction under the action of azobisisobutyronitrile initiator, depositing the film liquid on the porous substrate, and obtaining the two-dimensional pH intelligent response film based on graphene oxide. USE - The method is useful for preparing two-dimensional pH intelligent response film based on graphene oxide. ADVANTAGE - The method enables to prepare two-dimensional pH intelligent response film based on graphene oxide which is more sensitive to pH response. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation of two-dimensional pH intelligent response film based on graphene oxide