Boron Nitride Nanomaterial Manufacturing Method and Boron Nitride Nanomaterial, Composite Material Manufacturing Method and Composite Material, and Boron Nitride Nanomaterial Purification Method

摘要

[Problem] To provide a method for producing a boron nitride nanomaterial, the method making it possible to more reliably remove boron from a boron nitride composition that includes boron, the boron nitride composition being produced using, e.g., thermal plasma vapor deposition. [Solution] This method for producing a boron nitride nanomaterial comprises: a nanomaterial generation step for generating a boron nitride nanomaterial in which boron grains are encapsulated in boron nitride fullerene; an oxidation treatment step for forming boron oxide on at least the surface layer of the boron grains by exposing the boron nitride nanomaterial to an oxidizing environment; and a mechanical shock application step for applying mechanical shock to remove the boron grains in the boron nitride nanomaterial that has undergone the oxidation treatment step, the boron nitride nanomaterial being immersed in a solvent that dissolves boron oxide.