Hydrothermal carbon composite material capable of being applied in Fenton-like reaction as well as preparation method and application of hydrothermal composite material

The invention discloses a hydrothermal carbon composite material capable of being applied in a Fenton-like reaction as well as a preparation method and application of the hydrothermal composite material. An ortho-oxygen free radical with carbon as a center and an environmental persistence free radical with oxygen as a center are contained on the surface of a carbon material; the two types of free radicals can be used for activating hydrogen peroxide for the Fenton-like reaction, that is, the hydrothermal carbon composite material and H2O2 can form a Fenton-like system. In the invention, the surface of the hydrothermal carbon composite material has abundant functional groups and unique physicochemical properties, wherein a biologic material is prepared by a hydrothermal method with waste biomass, so that the resource utilization of the waste biomass can be realized, the consumption of energy is reduced, and the increasingly serious energy crisis is relieved; the hydrothermal carbon composite material and H2O2