▎ 摘　　要

NOVELTY - Preparing graphene oxide involves blending dilute hydrochloric acid with an anti-gelling agent to obtain washing liquid A, washing the graphite oxide raw material with the washing liquid A to obtain primary purified graphite oxide, and blending the organic acid with the anti-gelling agent to obtain washing liquid B. The primary purified graphite oxide is washed with the washing solution B to obtain intermediate purified graphite oxide. The blending and washing the anti-gelling agent and the intermediate purified graphite oxide are performed to obtain purified graphite oxide and exfoliated the purified graphite oxide to obtain graphene oxide. USE - Method for preparing graphene oxide. ADVANTAGE - The method enables to prepare graphene oxide that effectively reduces the content of impurity ions in the graphene oxide, especially the content of chloride ion impurities, and improves the yield of graphene oxide.