▎ 摘　　要

NOVELTY - Method for preparing graphene-based metal-free Fenton catalyst, involves (i) carrying out acid pickling treatment on waste, (ii) soaking the treated waste in a solution containing additive, and (iii) drying and calcining the product obtained in step (ii) to obtain the product. USE - The method is useful for preparing graphene-based metal-free Fenton catalyst in environmental pollution treatment field (all claimed). ADVANTAGE - The method enables preparation of graphene-based metal-free Fenton catalyst with has a wide range of waste sources, highly reduced preparation cost of the material, catalytic site, excellent Fenton catalytic performance, and three-dimensional macrostructure, and is economical, easy for solid-liquid separation, and simple and efficient to prepare.