Graphitized carbon purification method

The invention relates to a graphitized carbon purification method. The method comprises the following steps: 1) preparing an acid solution with the concentration of 0.5-10 mol/L; 2) soaking the composite carbon in an acid solution to obtain a composite carbon/acid solution, wherein the composite carbon accounts for 1-80% of the weight of the acid solution; (3) reacting the obtained composite carbon/acid solution at high temperature and high pressure, and selectively etching the composite carbon through acid to remove amorphous carbon remained in the composite carbon so as to obtain graphitizedcarbon; 4) sequentially cleaning and thermally treating the obtained graphitized carbon to obtain a pure graphitized carbon material. The method has the following beneficial effects that the purification technology has the advantages of being efficient, rapid, high in selectivity and the like and is not restrained by the morphology of the purified material, and the graphitized carbon material prepared through the method