▎ 摘　　要

NOVELTY - Preparing nanoparticle dispersion comprises (i) dispersing graphene oxide in deionized water to form graphene oxide dispersion, (ii) dispersing the nanoparticles in deionized water to form nanoparticle dispersion, (iii) mixing graphene oxide dispersion and nanoparticle dispersion, and performing ultrasonic dispersion to obtain composite dispersion, (iv) adjusting the pH of the composite dispersion to alkaline, and then performing ultrasonic dispersion again, and (v) introducing the composite dispersion liquid after ultrasonic dispersion again into reaction vessel, and heat-treating to obtain nanoparticle dispersion. USE - The nanoparticle dispersion is useful in the field of electronics, chemical, mechanical, and biological industries. ADVANTAGE - The method is simple, convenient to operate and has low cost, and is suitable for large-scale industrial production. The nanoparticle dispersion has excellent stability and maintains its original characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for nanoparticle dispersion obtained by above method.