One-step rapid synthesis of HKUST-1 and the application for europium(III) adsorbing in solution

As a famous metal–organic framework (MOF) material, HKUST-1 has a high density of open metal sites and a moderate pore size. Moreover, it is usually used for liquid phase adsorption because of its good water resistance. However, the traditional hydrothermal method has the disadvantages of slow synthesis speed, harsh experimental processes and unsafe experimental conditions. Herein, HKUST-1 had been synthesized under room temperature through a quickly and convenient way. Synthesized HKUST-1 showed good adsorption capacity of europium(III) (135.32 mg/g) at pH = 6. The results indicated that the adsorption procedure obeys quasi-second-order kinetic model and Langmuir isothermal model.