▎ 摘　　要

NOVELTY - The preparation method of methylammonium lead triiodide-reduced graphene oxide composite photocatalytic material involves preparing methylammonium lead triiodide powder, mixing methylammonium lead triiodide and graphene oxide as composite precursor with saturated hydroiodic acid solvent and then loading on the surface of methylammonium lead triiodide particles by photoreaction. USE - The method is useful for preparing methylammonium lead triiodide-reduced graphene oxide composite photocatalytic material for producing hydrogen (claimed). ADVANTAGE - The method enables simple preparation of methylammonium lead triiodide-reduced graphene oxide composite photocatalytic material with excellent stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for methylammonium lead triiodide-reduced graphene oxide composite photocatalytic material prepared by the method.