Uranium is not only a radioactive element but also an important nuclear-energy source. Thus the design of material for effective uranium adsorption is highly desirable from both environmental and energy considerations. In this work, a new azo-MOF was explored such use. It shows excellent U(VI) removal performance with the adsorption capacity up to 200 mg/g. The adsorption, as disclosed by the adsorption kinetics, is dominated by chemical adsorption, mainly due to coordination interaction between azo/amide and U(VI) ions. The results suggest that design of material with free-standing azo or amide groups benefits to U(VI) removal.

中文翻译：

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包含偶氮和酰胺基团的金属有机骨架，可有效去除U（VI）

铀不仅是放射性元素，而且是重要的核能来源。因此，从环境和能量方面考虑，非常需要用于有效铀吸附的材料设计。在这项工作中，探索了一种新的偶氮-MOF这样的用途。它显示出优异的U（VI）去除性能，吸附容量高达200 mg / g。如吸附动力学所揭示的那样，吸附主要由化学吸附引起，这主要是由于偶氮/酰胺与U（VI）离子之间的配位相互作用。结果表明，具有独立的偶氮或酰胺基团的材料的设计有益于U（VI）的去除。