▎ 摘　　要

NOVELTY - A photocatalyst composition of porphyrin amine-functionalized graphene oxide (PGO) comprises porphyrin and an amine functionalized graphene oxide (AGO) in ratio of 1:1-1:5. The porphyrin and the AGO in the composition combine synergistically as a photocatalyst. The PGO is prepared by grinding AGO containing primary amine functionality with (5,10,15,20-tetrakis(4-benzaldehyde)porphyrin)copper compound having aldehyde functionality in the presence of acetic acid to obtain PGO composite. The reduction of carbon dioxide is performed by using the photocatalyst composition of porphyrin amine-functionalized graphene oxide. USE - Photocatalyst composition of porphyrin amine-functionalized graphene oxide used for carbon dioxide reduction. ADVANTAGE - The photocatalyst composition of porphyrin amine-functionalized graphene oxide has high selectivity for the reduction of carbon dioxide to methane, and is prepared in simple manner with improved stability and recyclability of the catalyst and high time-efficient and to avoid copious-toxic solvent.