Magnetic Fe₃O₄@Cu/Ce microspheres were successfully prepared by one-step solvothermal approach and further utilized to remediate toxic arsenic (As(III)) pollution. The effects of Cu/Ce elements co-doping on the crystal structure, catalytic oxidation and adsorption behaviors of magnetic microspheres were researched systematically. The results showed that with the aid of Cu/Ce elements, the grain size reduced, lattice defects increased, and the oxygen vacancies and surface hydroxyl groups were improved. Therefore, Cu/Ce elements endowed magnetic Fe₃O₄@Cu/Ce microspheres with excellent As(III) removal performance, whose maximum adsorption capacity reached 139.19 mg/g. The adsorption mechanism mainly involved catalytic oxidant co-adsorption. This research developed a feasible strategy for the preparation of high efficiency magnetic adsorbent to enhance the removal of As(III).

通过一步溶剂热法成功制备了磁性Fe ₃ O ₄ @ Cu / Ce微球，并进一步用于修复有毒砷（As（III））污染。系统研究了Cu / Ce元素共掺杂对磁性微球晶体结构，催化氧化和吸附行为的影响。结果表明，借助于Cu / Ce元素，晶粒尺寸减小，晶格缺陷增加，氧空位和表面羟基得到改善。因此，Cu / Ce元素赋予了磁性Fe ₃ O ₄@ Cu / Ce微球具有优异的As（III）去除性能，其最大吸附容量达到139.19 mg / g。吸附机理主要涉及催化氧化剂的共吸附。这项研究开发了一种可行的策略来制备高效的磁性吸附剂，以增强对As（III）的去除。