▎ 摘　　要

NOVELTY - Preparing photo-catalyst based on graphene molecular skeleton comprises (1) preparation of graphene oxide, (2) using absolute ethanol as solvent to prepare a solution of terephthalic acid with a concentration of 0.5x 10-2 mol/l to 1x 10-2 mol/l, and a titanate with a concentration of 0.5x 10-2 mol/l-0.8x 10-2 mol/l butyl ester solution, (3) adding 0.01-0.05 g graphene oxide to reaction kettle, and dropping 3-5 mu l tetrabutyl titanate solution into reaction kettle at 100-150 degrees C and reacting for 6-8 hours, and (4) after completing reaction, adding 3-5 mu l terephthalic acid solution after cooling, and storing at 60-80 degrees C for 0.5-1 hours. USE - The method is useful for preparing photo-catalyst based on graphene molecular skeleton. ADVANTAGE - The photo-catalyst: has good purification effect on indoor pollutants e.g. formaldehyde, long-lasting purification ability, and does not cause secondary pollution.