In order to deal with the sudden nuclear leakage event to suppress the spread of radioactive contaminants in a short period of time, it is extremely urgent needed to explore an adsorbent that could be capable of in-situ remedial actions to rapidly capture the leaked radionuclides in split second. An adsorbent was developed that MoS₂ via ultrasonic to expose more surface defects afterwards functionalized by phosphoric acid resulting in more active sites being endowed on the edge S atoms of Mo-vacancy defects, while simultaneously increased the hydrophilicity and interlayer spacing. Hence, an overwhelming fast adsorption rates (adsorption equilibrium within 30 s) are presented and place the MoS₂-PO₄ at the top of performing sorbent materials. Moreover, the maximum capacity calculated from Langmuir model is as high as 354.61 mg·g⁻¹, the selective adsorption capacity (S_U) achieving 71.2% in the multi-ion system and with more than 91% capacity retention after 5 cycles of recycling. Finally, XPS and DFT insight into the adsorption mechanism, which can be explained as interaction of UO₂²⁺ on the surface of MoS₂-PO₄ by forming U-O and U-S bonds. The successful fabrication of such a material may provide a promising solution for emergency treatment of radioactive wastewater during nuclear leakage events.

为了应对突发核泄漏事件，短时间内抑制放射性污染物的扩散，迫切需要探索一种能够就地补救的吸附剂，快速捕获泄漏的放射性核素。一瞬间。开发了一种吸附剂，MoS ₂通过超声波暴露更多的表面缺陷，然后通过磷酸功能化，从而在Mo空位缺陷的边缘S原子上赋予更多的活性位点，同时增加亲水性和层间距。因此，呈现出压倒性的快速吸附速率（30秒内吸附平衡）并将MoS ₂ -PO ₄位于高性能吸附剂材料的顶部。此外，根据Langmuir模型计算得到的最大容量高达354.61 mg·g ^{-1 ，}多离子体系中的选择性吸附容量（S _U ）达到71.2%，循环5次后容量保持率超过91% 。最后，XPS和DFT深入探讨了吸附机理，可以将其解释为UO ₂ ^2+在MoS ₂ -PO ₄表面通过形成UO和US键相互作用。这种材料的成功制造可能为核泄漏事件期间放射性废水的应急处理提供有前景的解决方案。