▎ 摘　　要

NOVELTY - Preparing water-soluble graphene involves dispersing graphene oxide in solvent A, adding ammonia-based reducing agent to carry out partial reduction reaction after filtering, dispersing filter cake in solvent B, adding water-soluble small molecule compounds containing hydroxyl groups and orthoformate to react under certain conditions to obtain water-soluble graphene after separation. USE - Method for preparing water-soluble graphene. ADVANTAGE - The method enables to prepare water-soluble graphene that has good dispersibility in water, saves energy and protects the environment, and is beneficial to industrial production.