▎ 摘　　要

Various toxic organic pollutants can be degraded or mineralized into biogradable small molecules or carbon dioxide by photocatalysis. And the keystone of photocatalysis research is pursuing highly efficient photocatalysis. Zinc oxide (ZnO) nanomaterials and graphene nanomaterials (GNS) were prepared from expanded graphite according to modified Hummers method. ZnO/GNS were prepared by ultrasound method. The samples were analyzed by XRD, TEM, FT-IR, UV-vis and Raman spectroscopy. Expanded graphite through deep oxidation and reduction can be thin layer of graphene. Then ZnO/GNS was constructed by simple ultrasound method. And photocatalytic performance of the composite structure showed was increased drastically. Thus, the structure we built is necessary to environment.