▎ 摘　　要

NOVELTY - Manufacture of nitrogen-doped titanium nanotube/reduced graphene oxide composite involves (i) preparing graphene oxide exfoliated by an oxidation reaction of graphite using a mixture of sulfuric acid and phosphoric acid, (ii) preparing a mixed solution (A) by mixing urea, ammonia and distilled water, (iii) preparing a mixed solution (B) by mixing precursor titanium isopropoxide (TTIP), ethylene glycol and distilled water, (iv) mixing the mixed solution (A) and the mixed solution (B), adjusting sulfuric acid to pH of 4.3, filtering and drying, (v) calcining the mixture to prepare nitrogen-doped titanium nanoparticles, and (vi) after mixing the graphene oxide and the nitrogen-doped titanium nanoparticles, and performing hydrothermal synthesis using sodium hydroxide aqueous solution. USE - Manufacture of nitrogen-doped titanium nanotube/reduced graphene oxide composite. ADVANTAGE - The method enables manufacture of nitrogen-doped titanium nanotube/reduced graphene oxide composite having excellent efficiency of photocatalyst by the nanotube-shaped morphology with excellent specific surface area, photoactivity in the visible light region and reproducibility, and low-band gap.