▎ 摘　　要

NOVELTY - Preparing polystyrene/graphene/noble metal composite particle comprises e.g. using without surface modification and modified polystyrene microspheres, preparing as water polystyrene microsphere dispersion, dispersing graphite oxide in water, by ultrasonic peeling off to obtain graphite oxide water dispersion, under stirring conditions, dispersing graphene oxide water dispersing liquid and polystyrene microsphere dispersion in water, rising temperature to 80-100 degrees C, adding hydration hydrazine, reacting for 45-150 minutes, centrifuging and washing. USE - The method is useful for preparing polystyrene/graphene/noble metal composite particle (claimed). ADVANTAGE - The method is simple, universal, economical and suitable for industrial production. DETAILED DESCRIPTION - Preparing polystyrene/graphene/noble metal composite particle comprises (i) using without surface modification and modified polystyrene microspheres, preparing as water polystyrene microsphere dispersion, (ii) dispersing graphite oxide in water, by ultrasonic peeling off to obtain graphite oxide water dispersion, (iii) under stirring conditions, dispersing graphene oxide water dispersing liquid and polystyrene microsphere dispersion in water, rising temperature to 80-100 degrees C, adding hydration hydrazine, reacting for 45-150 minutes, centrifuging, washing, obtaining polystyrene/graphene composite particle of water dispersion liquid, where the quality of hydration hydrazine and graphite oxide ratio is 100:1-5 and (iv) dispersing polystyrene/graphene composite dispersion liquid particle in water, adding noble metal precursor, reacting for 30-120 minutes at 20-100 degrees C, centrifuging and washing to obtain polystyrene/graphene/noble metal composite particle.