▎ 摘　　要

Graphene oxide-supported beta-cyclodextrin was prepared with graphene oxide and beta-cyclodextrin as raw materials and epichlorohydrin as crosslinking agent, respectively. It was characterized by the methods of Raman spectroscopy, FT-IR, and SEM. The graphene oxide-supported beta-cyclodextrin showed excellent adsorption performance forp-nitrophenol, and the absorption equilibrium can be achieved within 2 h. The adsorptive capacity is 117.28 mg/g at adsorption temperature of 313 K and pH at 8.0. Adsorption isotherms showed that the adsorption capacity increases with the increases of temperature and adsorption process could be better fitted by Langmuir isotherm (R-2 > 0.995). Thermodynamic functions (Delta G, Delta H, and Delta S) investigation showed that the adsorption is spontaneous, endothermic, and random. The adsorption kinetics ofp-nitrophenol over graphene oxide-supported beta-cyclodextrin is conformed to a pseudo-second-order process. This study has suggested that the graphene oxide-supported beta-cyclodextrin could play an efficient and beneficial source of the adsorbent for the purpose of eliminatingp-nitrophenol from aqueous solution.