| abstract |
A polymer-modified graphene composite material, and a sensor and application thereof. The polymer-modified graphene composite material comprises molybdenum disulfide, graphene, graphene quantum dots, and a polymer. Specifically, the surface of a composite material of molybdenum disulfide, graphene and graphene quantum dots is modified with the polymer to obtain the polymer-modified graphene composite material, the problem of an existing molybdenum disulfide sensor requiring heating to detect nitrogen dioxide is solved, nitrogen dioxide can be detected at room temperature, and a test result shows that a response value of a gas sensor prepared from the polymer-modified graphene composite material is high and increases by 30% or more compared with that of an unmodified sensor, and the gas sensor has good repeatability and selectivity. |