▎ 摘　　要

NOVELTY - Preparing graphene oxide comprises irradiating manganese-inserted graphite under visible light to obtain final product. USE - The method is useful in preparing graphene oxide. ADVANTAGE - The method: has mild reaction conditions; and is simple, easy to implement, low cost, environmentally friendly and suitable for large-scale industrial production. The graphene oxide: has large area, more tight coating, and is conducive to better isolation of bacteria. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide obtained by above method.