Preparation method of tantalum pentoxide nanoparticle/graphene composite photocatalyst

The present invention relates to tantalum pentoxide nanoparticles preparation method / graphene composite photocatalyst to oxidize the graphite substrate, using commercial tantalum pentoxide arranged precursor of the catalyst by hydrogen peroxide and other reagents tantalum pentoxide precursor the method of adjusting the auxiliary liquid ultrasound, to achieve the growth of tantalum pentoxide nanoparticles graphene surface to obtain a tantalum pentoxide nanoparticle / graphene composite photocatalyst. The preparation obtained tantalum pentoxide nanoparticle / graphene composite photocatalyst, since the electron-accepting effect of graphene, and an ultraviolet light catalytic nanometer tantalum pentoxide of photocatalytic decomposition of organic pollutants, photocatalytic hydrogen evolution so it has broad application prospects.