Mercapto functionalized Zr-based magnetic metal–organic framework (MUS) was synthesized and evaluated for the simultaneous removal of inorganic Sb/Se species. The adsorption kinetic study showed that the adsorption process fitted well with the pseudo-second-order kinetic adsorption model and adsorption kinetic constants were 0.188–0.591 g mg⁻¹ min⁻¹. Adsorption isotherm was in good agreement with the Langmuir adsorption model and the maximum adsorption capacity of Sb(V), Sb(III), Se(VI) and Se(IV) on MUS was 204, 67.6, 27.3 and 49.0 mg g⁻¹ at 298 K. Adsorption thermodynamics showed that the adsorption process of Sb(III)/Se(IV) on MUS was spontaneous, exothermic with increased entropy, and that of Sb(V)/Se(VI) was spontaneous, endothermic with increased entropy. X-ray photoelectron spectrometer characterization showed that Zr-O clusters of MUS were essential for removing Sb(V)/Se(VI). Moreover, the combination of Zr-O clusters with mercapto may contribute to the removal of Sb(III)/Se(IV) which lead to a faster removal rate and higher adsorption capacity. The magnetic nanocomposite is promising for application in the simultaneous removal of inorganic Sb and Se species with merits of fast separation, rapid adsorption kinetics, good stability and high adsorption capacity.

合成了巯基功能化的 Zr 基磁性金属有机骨架 (MUS)，并对其同时去除无机 Sb/Se 物种进行了评估。吸附动力学研究表明，该吸附过程符合准二级动力学吸附模型，吸附动力学常数为0.188-0.591 g mg ^-1 min ^-1。吸附等温线与 Langmuir 吸附模型非常吻合，Sb(V)、Sb(III)、Se(VI) 和 Se(IV) 在 MUS 上的最大吸附容量分别为 204、67.6、27.3 和 49.0 mg g ^-1在 298 K。吸附热力学表明 Sb(III)/Se(IV) 在 MUS 上的吸附过程是自发的、放热的、熵增加的，而 Sb(V)/Se(VI) 的吸附过程是自发的、吸热的、熵增加的. X 射线光电子能谱仪表征表明，MUS 的 Zr-O 簇对于去除 Sb(V)/Se(VI) 至关重要。此外，Zr-O 簇与巯基的结合可能有助于去除 Sb(III)/Se(IV)，从而导致更快的去除速率和更高的吸附容量。磁性纳米复合材料具有分离速度快、吸附动力学快、稳定性好、吸附容量高等优点，有望应用于无机Sb和Se的同时去除。