▎ 摘　　要

NOVELTY - Reduction-oxidation graphene/porphyrin/nanometer platinum composite material comprises a reduction-oxidation graphene film, the reduction-oxidation graphene film is modified 5,10,15,20-tetrakis (4-carboxyphenyl) porphyrin nanorod, and the platinum nanoparticles supported on a reduction-oxidation graphene film modified with 5,10,15,20-tetrakis (4-carboxyphenyl) porphyrin nanorod. USE - The graphene film is useful as the photocatalyst in process of photocatalytic hydrogen production (claimed). ADVANTAGE - The method has short process flow, simple experiment condition, low cost, and no pollution to environment, and can reaches the requirement of clean production. The modified reduction-oxidation graphene film has good light catalytic performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of the reduction-oxidation graphene/porphyrin/nanometer platinum composite material comprising (i) preparing reducing graphene oxide film: preparing 0.8-1 mg/ml of oxidized graphene aqueous solution; keeping in the electrolytic cell using cyclic voltammetry on the indium tin oxide (ITO) surface electro-deposition to obtain the reduced oxidation graphene film through 2-16 ring, (ii) porphyrin modification of reduced graphene film: placing the 5,10,15,20-tetrakis (4-carboxyphenyl) porphyrin in beaker A, then treating with 0.2 mol/l of sodium hydroxide solution to dissolve, preparing A liquid with the concentration of 8-8.5 mg/mL, hexadecyl trimethyl ammonium bromide into a beaker B, adding volume fraction of 0.3-0.32% of hydrochloric acid solution; to prepare concentration of 3-4 mg/ml of B liquid, the A liquid and B liquid stirring ratio after mixing at a volume ratio of 18-20:1, centrifuging, the supernatant is 5, 10, 15, 20-(4 phenyl) porphyrin nanorod solution; using liquid moving gun for extracting 2.5-5 ul, dropping the reduction-oxidation graphene film obtained in the step (i), drying the solution after coating for one time in the same dosage and then dripping to obtain porphyrin modified reduction-oxidation graphene film; and (iii) modified by porphyrin of the reduced oxidation graphene film on the platinum light reducing load reduction-oxidation graphene film modified by porphyrin in step (ii) is electrode, adding methanol-aqueous solution of chloroplatinic acid, using 150 w xenon lamp illumination after washing, and drying to obtain the reducing graphene oxide/platinum porphyrin/nanometer composite material.