Alkaline ion exchange fibers constructed by UV-induced radical polymerization for efficient uranium recovery from wastewater and seawater

Li, Bingying; Liu, Jingyuan; Liu, Qi; Zhu, Jiahui; Yu, Jing; Chen, Shusen; Song, Yan; Li, Rumin; Wang, Jun

doi:10.1016/j.cej.2024.156164

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.156164

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Alkaline ion exchange fibers constructed by UV-induced radical polymerization for efficient uranium recovery from wastewater and seawater

Bingying Li,

Jingyuan Liu,

Qi Liu

et al.

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Coordination‐Induced Magnetism Strategy for Highly Selective and Efficient Uranium Separation

Zhao,

Feng,

Zhang

et al. 2024

Advanced Science

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Highly efficient separation of dispersed uranium is important for the sustainable development of nuclear industry, and adsorption is the most recognized approach. However, there are many coexisting interfering metal ions that compete with uranyl ion for the chelating ligands in the adsorbents and lead to low separation selectivity and efficiency. Herein, a coordination‐induced magnetism strategy is presented for the separation of uranium based on the conversion of diamagnetic cyanoferrocene (Fc‐CN) nanocrystals to uranium‐containing magnetic recoverable ferromagnetic aggregates. Different from previous adsorption strategies, this strategy combines the mechanisms of photocatalytic uranium enrichment and chemical uranium adsorption. Under light irradiation, electron of Fe(II) in Fc‐CN is excited and transfers to uranyl ion via the cyano group to form tight coordination bond between N atom in cyano group and uranium. This phenomenon is unique for uranyl ion, and thus, a high uranium removal rate of 97.98% is achieved in simulated nuclear wastewater with the presence of tremendous interfering ions, proving its highly selective and efficient uranium separation performance. The ability to form highly stable magnetic aggregates via photoinduced interaction between Fc‐CN and uranium enriches the understanding on the chemical properties of Fc‐CN and uranium.

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Coordination‐Induced Magnetism Strategy for Highly Selective and Efficient Uranium Separation

Zhao,

Feng,

Zhang

et al. 2024

Advanced Science

View full text Add to dashboard Cite

show abstract

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Alkaline ion exchange fibers constructed by UV-induced radical polymerization for efficient uranium recovery from wastewater and seawater

Cited by 1 publication

References 58 publications

Coordination‐Induced Magnetism Strategy for Highly Selective and Efficient Uranium Separation

Coordination‐Induced Magnetism Strategy for Highly Selective and Efficient Uranium Separation

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