▎ 摘　　要

NOVELTY - Composite photocatalyst comprises graphene quantum dots-semiconducting oxide-carbon nanofibers. USE - The photocatalyst is useful in various industrial sites including antibacterial tiles, air cleaner, lighting equipment, water and sewage treatment, water treatment including ballast water treatment, carbon dioxide conversion, and flexible pad. ADVANTAGE - The photocatalyst has excellent visible light catalytic activity and high conductivity, antibacterial, sterilization and deodorization functions under outdoor sunlight and indoor fluorescent lamps; decomposes bacteria and non-degradable chemicals; separates graphene quantum dot-titanium dioxide particles from carbon nanofibers by amorphous carbon film; and minimizes aggregation effect of photocatalyst particles.