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Updated: Jun 17, 2026

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
Published on: June 21, 2015
Fe3O4-functionalized UiO-66 with facile magnetic recovery for high-capacity and rapid uranium removal from
Yunhu Hu1,2, Zilong Chen2, Dunpeng You2
1Engineering Technology Research Center of Coal Resources Comprehensive Utilization, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China. youmu@ustc.edu.cn.
Abstract:
Nuclear energy serves as a cornerstone for realizing "dual-carbon" targets, yet the purification of uranium-contaminated aqueous systems remains a major bottleneck hampering the sustainable advancement of the nuclear industry. In this work, a magnetic Fe3O4@UiO-66 composite was fabricated via a sequential solvothermal synthesis of UiO-66 followed by an in situ hydrothermal growth of Fe3O4. The batch adsorption experiment demonstrated that the adsorption process of U(VI) on the Fe3O4@UiO-66 composite rapidly reaches equilibrium within 20 min, and its saturated adsorption capacity (338.78 mg g-1) is 12.6 times that of pure Fe3O4 (26.91 mg g-1). The adsorption data were well described using monolayer chemisorption models, as supported by both isotherm and kinetic fittings. Furthermore, the adsorbent enables swift isolation from the aqueous solution with the aid of an external magnetic field post-adsorption. This novel Fe3O4@UiO-66 composite thus offers an effective strategy for radioactive uranium decontamination in water, combining high adsorption performance with facile magnetic recovery.
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