Synthesis and photocatalytic CO₂ reduction activity of a coal-based graphene assembly

A 3D graphene assembly was prepared by chemical reduction using coal-based graphene oxide as the raw material. The morphologies and structures of the samples were analyzed by SEM, TEM, FT-IR and Raman spectroscopy. Results show that the 3D graphene has a high catalytic activity for photocatalytic CO₂ reduction in a fixed bed reactor and the yield of the target product, methanol, is up to 65.91 mol/g of catalyst.