The anti-fouling performance of an adsorbent is important for its application in wastewater, because biological fouling severely reduces its adsorption capacity. A zeolitic imidazolate framework was synthesized and oxime-functionalized to produce an efficient uranium adsorbent with antimicrobial properties (ZIF-90-OM). Its adsorption performance for U (VI) was studied under different environmental parameters, including pH, initial uranium concentration, competitive ions, ionic strength, temperature, and contact time. Due to its porous structure and the strong chelation of oxime groups with U (VI), ZIF-90-OM showed a very high maximum adsorption capacity for U (VI) of 610 mg/g at pH = 5.0. The adsorption of uranium on ZIF-90-OM correlated well with the Langmuir model and the pseudo-second-order kinetic model. ZIF-90-OM showed high uranium selectivity even in the presence of competing metal ions. Besides, the adsorbent also exhibits good recyclability, the adsorption capacity was maintained after five adsorption/desorption cycles. Furthermore, ZIF-90-OM showed excellent antimicrobial properties against both Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus). Our work shows that ZIF-90-OM is an efficient adsorbent for the removal of U (VI) from wastewater because of the presence of oxime groups and its anti-fouling properties. Moreover, due to its antimicrobial properties, ZIF-90-OM can be used to purify water.

吸附剂的防污性能对其在废水中的应用很重要，因为生物污染严重降低了其吸附能力。合成沸石咪唑酯骨架并进行肟功能化以生产具有抗菌性能的高效铀吸附剂 ( ZIF-90-OM)。在不同的环境参数下研究了其对 U (VI) 的吸附性能，包括 pH、初始铀浓度、竞争离子、离子强度、温度和接触时间。由于其多孔结构和肟基团与 U (VI) 的强螯合，ZIF-90-OM在 pH = 5.0 时对 U (VI) 显示出非常高的最大吸附容量 610 mg/g。ZIF-90-OM对铀的吸附与 Langmuir 模型和伪二级动力学模型相关性很好。即使存在竞争性金属离子，ZIF-90-OM 也显示出高铀选择性。此外，吸附剂还表现出良好的可回收性，吸附容量在五个吸附/解吸循环后仍保持不变。此外，ZIF-90-OM对革兰氏阴性大肠杆菌（E.coli）和革兰氏阳性金黄色葡萄球菌（S.aureus）均显示出优异的抗菌特性。我们的工作表明，ZIF-90-OM由于肟基团的存在及其防污性能，是一种有效的吸附剂，可用于去除废水中的 U (VI)。此外，由于其抗菌特性，ZIF-90-OM可用于净化水。