Carbon nano tube modified particle as well as preparation method and application thereof

The invention relates to a preparation method of carbon nano tube modified particles, the carbon nano tube modified particles and application of the carbon nano tube modified particles. The preparation method comprises the following steps: mixing carbon nanotubes, a strong oxidant and an acidic solution to prepare a modified suspension; mixing a solvent, a dispersing agent, a cosolvent and the modified suspension, and performing dispersion treatment to prepare mixed slurry; and carrying out spray drying on the mixed slurry to prepare the carbon nanotube modified particles, wherein the particle size of the carbon nanotubes in the mixed slurry is 100 nm to 3 [mu] m. According to the preparation method, the strong oxidant, the acid and the carbon nano tube are mixed for primary modification, and the mixed slurry with the specific particle size is further prepared, so that the carbon nano tube obtains more surface modification opportunities, the grafting efficiency is greatly improved, and more sufficient and eff