▎ 摘　　要

NOVELTY - Method for dispersing nano-carbon material, involves (a) adding tannic acid and trivalent metal salt to ultrapure water to obtain 24 mmol/l tannic acid solution and 37 mmol/l trivalent metal salt solution, (b) sequentially adding 0.5 ml tannic acid solution and 0.5 ml trivalent metal salt solution to 49 ml ultrapure water to obtain tannic acid/trivalent metal ion complex, (c) adding nano-carbon material to ultrapure water to obtain mixed solution having concentration of 0.05-0.2 mg/ml, (d) adding the obtained mixed solution into ultrasonic cell crusher in ice water bath for 35-40 minutes, and (e) adding tannic acid/trivalent metal ion complex to the mixed solution, ultrasonically treating using ultrasonic cell crusher for 30-40 minutes in ice water bath, and leaving still the mixed solution after performing ultrasonic treatment for more than 1 hour to obtain stable nano-carbon material suspension. USE - Method for dispersing nano-carbon material. ADVANTAGE - The method adopts tannic acid metal complex, which is non-toxic and stable buffer system, ensures excellent suspending ability to nano-carbon materials, and ensures wide application conditions. The product is stable.