Zr (IV)-based coordination porous materials for adsorption of Copper(II) from water

Abstract Zr (IV)-based coordinate porous materials (CPMs) possess versatile architectures, good stability, low toxicity and high specific surface area, and have attracted tremendous attentions in recent years. In this paper, Zr (IV) CPMs, including EDTMPA-Zr, UiO-66, and UiO-67, were prepared and employed for the adsorption of Cu (II) from aqueous solutions. The static adsorption thermodynamics, kinetics, mechanism and stability of Zr (IV) CPMs were investigated. The results showed that, EDTMPA-Zr is stable and the maximum adsorption capacity (110.4 mg g −1 ) is much higher than that of UiO-66, UiO-67 and most adsorbents reported in the literature due to the rich adsorptive sites on EDTMPA-Zr. The adsorption process can be well described by the Langmuir isotherm model and pseudo-second-order kinetic model. EDTMPA-Zr exhibits good reusability and potential in adsorption of Cu (II).