▎ 摘　　要

NOVELTY - Photocatalyst comprising 1-10 mass% of graphene, carbon nanotube and titanium dioxide, is new. The titanium dioxide comprises microspheroidal particles, and has particle size distribution of 20-100 nm. USE - The photocatalyst is useful for degradation of formaldehyde (claimed). ADVANTAGE - The photocatalyst has high conductivity and surface area, and improved efficiency and catalytic activity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of photocatalyst.