The decline of fossil fuels is fostering research on carbon–neutral fuels such as nuclear energy, yet uranium supply is limited by actual techniques of uranium extraction from seawater. In particular, biofouling by marine bacteria and adsorbent instability are major drawbacks. Here we synthesized a novel amidoxime-functionalized antibacterial covalent organic framework that displays high stability and inhibits more than 90% the growth of marine bacteria, thus resulting in an enhanced uranium recovery capacity of 6.64 mg/g. Meanwhile, due to its exceptional fluorescence properties, the adsorbent can also be applied to highly sensitive on-site and real-time monitoring of UO₂²⁺.

化石燃料的下降正在促进对碳中性燃料（如核能）的研究，但是铀的供应受到从海水中提取铀的实际技术的限制。特别地，海洋细菌造成的生物污染和吸附剂的不稳定性是主要缺点。在这里，我们合成了一种新型的a胺肟官能化的抗菌共价有机骨架，该骨架显示出高稳定性并抑制超过90％的海洋细菌生长，从而使铀的回收能力提高了6.64 mg / g。同时，由于其优异的荧光特性，该吸附剂还可用于UO ₂ ^2+的高灵敏度现场和实时监测。