Highly efficient treatment of uranium contamination is of great importance for the sustainable development of the environment. The recovery of uranium by adsorbents is a feasible strategy for treating uranium contamination. However, due to insufficient exposure of the contact interfaces, currently available adsorbents usually take extremely long time for uranium adsorption. Herein, a magnetic-single-molecular amidoxime adsorbent M−AO−Fc is fabricated for highly efficient recovery of uranium from nuclear wastewater by endowing the amidoximated cyanoferrocene with magnetism. The adsorbent M−AO−Fc shows a maximum uranium adsorption capacity of 510.60 mg/g in uranium solution. In an acidic simulated nuclear wastewater containing a large number of interfering ions, M−AO−Fc also shows a high uranium adsorption capacity of 84.31 mg/g within a short equilibrium time of 60 min. The full dispersion of M−AO−Fc and full exposure of functional groups are the critical reasons for the excellent uranium adsorption performance. Attributing to the magnetism of M−AO−Fc, this adsorbent can be efficiently recovered by magnetic recovery and shows high reusability. This study proves that the magnetic-single-molecule would be a promising adsorbent for uranium recovery and opens up a new direction for designing a uranium adsorbent.

铀污染的高效处理对环境的可持续发展具有重要意义。吸附剂回收铀是处理铀污染的可行策略。然而，由于接触界面暴露不足，目前可用的吸附剂通常需要很长时间才能吸附铀。在此，制造了一种磁性单分子偕胺肟吸附剂 M-AO-Fc，通过赋予偕胺肟氰二茂铁磁性来高效地从核废水中回收铀。吸附剂 M-AO-Fc 在铀溶液中的最大铀吸附容量为 510.60 mg/g。在含有大量干扰离子的酸性模拟核废水中，M-AO-Fc 还表现出 84 的高铀吸附能力。在 60 分钟的短平衡时间内达到 31 mg/g。M-AO-Fc的完全分散和官能团的完全暴露是铀吸附性能优异的关键原因。由于 M-AO-Fc 的磁性，这种吸附剂可以通过磁回收有效地回收，并显示出高可重复使用性。该研究证明磁性单分子将是一种很有前途的铀回收吸附剂，并为设计铀吸附剂开辟了新的方向。