▎ 摘　　要

NOVELTY - Preparing sulfonated graphene oxide comprises mixing graphene oxide and sulfamic acid in mass ratio of 1:0.5-4, transferring to container, heating to 205-260degrees Celsius under the condition of protective gas, reacting for 4-10 hours, removing out the mixture, washing with water, and drying to obtain sulfonated graphene oxide. USE - The sulfonated graphene oxide is useful for photocatalytic degradation of organic pollutant. ADVANTAGE - The method has low cost, simple preparation method, easily obtained raw materials and no secondary pollution. The sulfonated graphene oxide has high removal efficiency for organic matter in polluted water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for using method of sulfonated graphene oxide to degrade organic pollutants, and carrying out photocatalytic degradation of organic sewage under light conditions.