Nanocarbon separation method

A nanocarbon separation method comprising:

• a step of preparing a plurality of liquids with different specific gravities in which at least one of the plurality of liquids is a dispersion liquid in which a mixture of nanocarbons with different properties is dispersed;
• a step of sequentially injecting the plurality of liquids into an electrophoresis tank so that the specific gravities of the liquids decrease from a bottom to a top of the liquids in a direction of gravitational force;
• and
• a step of separating the mixture of the nanocarbons by moving a part of the mixture of the nanocarbons toward an electrode side disposed in an upper part of the electrophoresis tank and moving a remainder of the mixture of the nanocarbons toward an electrode side disposed in a lower part of the electrophoresis tank by applying a direct current voltage to the electrodes disposed in the upper part and the lower part.