▎ 摘　　要

NOVELTY - Method for preparing graphene oxide with controllable pH, involves (i) placing the graphene oxide slurry in an ice-water bath for pretreatment, adding a diluent and stirring, (ii) adding the pH regulator in dropwise to the diluted graphene oxide slurry in step (i) to obtain a mixed slurry, where the pH regulator is an organic base, (iii) dispersing the mixed slurry obtained in step (ii) in the ice-water bath and stirring, and (iv) placing the mixed slurry obtained in step (iii) in a vacuum oven and keeping at room temperature until the bubbles in the slurry are completely removed. USE - Method for preparing graphene oxide with controllable pH. ADVANTAGE - The method stably controls and adjusts the pH of graphene oxide without affecting the performance of graphene.