▎ 摘　　要

A double-oxidized graphene oxide (DGO) was prepared and characterized. The DGO was the planar and layered sheets with the smooth surface with the BET specific surface area of 51.2 m(2)/g and an average pore size of 9.7 nm. A high density of oxygen-containing functional groups was developed on the surface of DGO. Adsorption of acetaminophen (ACT) was investigated on the prepared DGO. The maximum adsorption obtained at pH