Graphene oxide–supported β-cyclodextrin was prepared with graphene oxide and β-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 β-cyclodextrin showed excellent adsorption performance for p-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 (R² > 0.995). Thermodynamic functions (ΔG, ΔH, and ΔS) investigation showed that the adsorption is spontaneous, endothermic, and random. The adsorption kinetics of p-nitrophenol over graphene oxide–supported β-cyclodextrin is conformed to a pseudo-second-order process. This study has suggested that the graphene oxide–supported β-cyclodextrin could play an efficient and beneficial source of the adsorbent for the purpose of eliminating p-nitrophenol from aqueous solution.

以氧化石墨烯和β-环糊精为原料，以环氧氯丙烷为交联剂制备了氧化石墨烯负载的β-环糊精。通过拉曼光谱，FT-IR和SEM对其进行表征。氧化石墨烯负载的β-环糊精对对硝基苯酚表现出优异的吸附性能，并且在2 h内即可达到吸收平衡。在313 K的吸附温度和8.0的pH下，吸附能力为117.28 mg / g。吸附等温线表明，吸附容量随温度的升高而增加，Langmuir等温线可以更好地拟合吸附过程（R ²  > 0.995）。热力学函数（ΔG，ΔH和ΔS）研究表明，吸附是自发的，吸热的和无规的。对硝基苯酚在氧化石墨烯负载的β-环糊精上的吸附动力学符合拟二级过程。这项研究表明，为了从水溶液中消除对硝基苯酚的目的，氧化石墨烯负载的β-环糊精可以起到有效和有益的吸附剂来源的作用。