To effectively kill microorganisms on scrap facemasks (FMs) surface and provide new material for extracting uranium (U(VI)) from seawater, scrap FMs was treated by N₂ capacitance coupled (CCP) plasma and modified with polyamidoxime (PAO). The obtained PAO/FMs was well characterized and applied as an adsorbent in the extraction of U(VI) from seawater. The effects of environmental conditions on the adsorption capability of PAO/FMs for U(VI) were briefly studied. Results showed that plasma technique can synchronously kill microorganisms and induce acrylonitrile (AN) polymerization on FMs surface. The prepared PAO/FMs presented excellent adsorption capability for U(VI). The experimental results highlighted the application of plasma technique in the management of scrap FMs, and PAO/FMs in the extraction of U(VI) from seawater.

为了有效杀灭废弃口罩（FM）表面的微生物，为从海水中提取铀（U（VI））提供新材料，采用N ₂电容耦合（CCP）等离子体处理废弃口罩，并用聚酰胺肟（PAO）进行改性。所获得的 PAO/FM 得到了很好的表征，并作为吸附剂应用于从海水中提取 U(VI)。简要研究了环境条件对PAO/FMs对U(VI)吸附能力的影响。结果表明，等离子体技术可以同步杀死微生物并诱导FMs表面丙烯腈（AN）聚合。制备的PAO/FMs对U(VI)表现出优异的吸附能力。实验结果突出了等离子体技术在废 FM 管理中的应用，以及 PAO/FM 在从海水中提取 U(VI) 中的应用。