▎ 摘　　要

NOVELTY - Preparation of graphene load metal nanoparticle compound comprises washing graphene oxide with hydrochloric acid and deionized water, purifying, and ultrasonically dispersing; adding a reducing agent to a metal ion precursor solution to obtain a metal nanoparticle water solution; adding the graphene oxide solution in metal nanoparticle aqueous solution, and uniformly dispersing; washing by water, and adding deionized water ultrasonic dispersion; and adding sodium borohydride, reacting, centrifugally washing using deionized water and ethanol, and vacuum drying. USE - Method for the preparation of graphene load metal nanoparticle compound (claimed) used for sensor, photovoltaic cell, and organic synthetic catalyst. ADVANTAGE - The graphene load metal nanoparticle compound is suitable for environment at 0-100 degrees C and has a pH value of 2-12. It has excellent catalytic ability, outstanding conductivity and optical properties. The method can be carried out at the room temperature and different acid and alkali (pH) condition, and the reaction condition is mild. The method can load noble metal and transition metal nanoparticle to the graphene, and can be loaded with catalytic decomposing potent greenhouse NaBH4 metal oxide. DETAILED DESCRIPTION - Preparation of graphene load metal nanoparticle compound comprises: (A) washing graphene oxide with hydrochloric acid and deionized water, purifying to obtain a purified graphene oxide water solution, and ultrasonically dispersing; (B) adding a reducing agent to the metal ion precursor solution into metal nanoparticle uniformly distributed in an aqueous solution to obtain a metal nanoparticle water solution; (C) adding the graphene oxide solution in metal nanoparticle aqueous solution, and uniformly dispersing at room temperature to obtain the primary uniform graphene oxide load metal nanoparticle mixed solution; (D) washing the uniform graphene oxide load metal nanoparticle mixed solution by water, and adding deionized water ultrasonic dispersion to obtain the secondary uniform graphene oxide load metal nanoparticle mixed solution; and (E) adding sodium borohydride (NaBH4), reacting, centrifugally washing using deionized water and ethanol, and vacuum drying.