Method for preparing nano-materials and apparatus thereof

A method of manufacturing a boron nitride nanotube, the method comprising:

• preparing a powder including a first material having a boron and a second material having a catalyst material;
• forming a dispersion solution including the powder and a third material and a fourth material including a foaming agent;
• accommodating the dispersion solution in a mold and heating the dispersion solution in the mold at a temperature between 200° C. and 250° C. to decompose the third material into water vapor and carbon, and dissociate the foaming agent to carbon dioxide to form a structure, wherein the carbon acts as a support inside the structure, and the structure is a precursor for synthesis of the boron nitride nanotube;
• further comprising subjecting the structure to an oxidation treatment;
• generating pores in the structure based on the water vapor and the carbon dioxide;
• and
• synthesizing the boron nitride nanotube using the structure,
• wherein
• the third material includes at least one of sucrose and water-soluble polymer, and
• the foaming agent accelerates generation of at least one of air bubbles and the pores during formation of the structure.