TiO2-reduced graphene composite and preparation method thereof and application of TiO2-reduced graphene composite to artificial sea water system

The invention discloses a TiO2-reduced graphene composite and a preparation method thereof and application of the TiO2-reduced graphene composite to an artificial sea water system. The preparation method comprises the steps that 1, graphene oxide, absolute ethyl alcohol and deionized water are mixed and stirred in a water bath to form a balanced adsorption system; 2, a tetrabutyl titanate dissolved absolute ethyl alcohol solution is added dropwise to the adsorption system, and a reaction is carried out to obtain a TiO2-graphene oxide particle containing suspension system; 3, the obtained suspension system is transferred into an autoclave, and thermal treatment is carried out after closing; 4, heat treatment reaction liquid is separated after being cooled, and the composite is obtained after washing and drying. The method is simple in synthesis process, and the size of finished TiO2 anatase crystals obtained through the method ranges from 1 nm to 20 nm. Efficient light degradation can be carried out in the artificial sea water system to remove phenol, and the shape and performance of a photocatalyst can be effectively regulated and controlled by regulating reaction and thermal treatment parameters.