▎ 摘　　要

NOVELTY - The method involves coating metal/metal oxide nanoparticle with porous silica, and placing the metal/metal oxide nanoparticle in acid solution. Metal oxide/silica composite nanoparticle is heated with polysaccharide dispersed solution. Optical pumping-emission sensitivity is controlled according to homogeneous dispersion of a multi layer graphene hollow nanosphere, where metal is one of iron, cobalt, and manganese, and metal oxides are selected from a group consisting of oxides of iron, cobalt, and manganese. USE - Method for manufacturing a multi layer graphene hollow nanosphere of a carbon nanotube. ADVANTAGE - The method enables obtaining crystalline carbon to effectively manufacture the multi layer graphene hollow nanosphere of the carbon nanotube in an environment-friendly manner. The method improves physico-chemical property, hydrophilic property and water dispersibility of the carbon nanotube. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic illustration of a multi layer graphene hollow nanosphere manufacturing method.'(Drawing includes non-English language text)'