Anion-scavenging materials tailored for ⁹⁹TcO₄⁻ trapping are urgently needed for both nuclear-related environmental remediation and management of spent nuclear fuel. For the first time, we report here an ultra-robust imidazolium-decorated covalent organic framework (COF) conjugate fabricated by an ionizing radiation strategy, for efficient capture of ⁹⁹TcO₄⁻. The charged imidazolium moieties are controllably anchored into the channel of the COF by simply adjusting the γ-ray dose, thereby leading to tunable ReO₄⁻ uptake up to 952 mg g⁻¹ with high selectivity and fast kinetics. More importantly, the high porosity and ultra-robust nanofiber structure of the COFs make them ideal packing materials for dynamic column experiments. >99.98% ReO₄⁻/TcO₄⁻ can be efficiently separated and re-collected, even after four adsorption-desorption cycles, ranking a new record of the elimination rate for ReO₄⁻ adsorption. The performance of these materials suggests attractive opportunities in practical applications for TcO₄⁻ removal from the environment and nuclear waste.

对于定制的阴离子清除材料⁹⁹ TCO ₄ ^-捕获的迫切需要两种核相关的环境整治和乏核燃料的管理。对于第一次，我们在这里报告的超健壮咪唑装饰共价有机构架（COF）缀合物制造通过电离辐射的策略中，为了有效地捕获⁹⁹ TCO ₄ ^- 。带电咪唑鎓部分通过简单地调整γ射线的剂量，从而导致可调谐REO可控地锚定到COF的信道₄ ^-摄取高达952毫克克^-1具有高选择性和快速动力学。更重要的是，COF的高孔隙度和超强健的纳米纤维结构使其成为动态色谱柱实验的理想填料。> 99.98％REO ₄ ^- / TCO ₄ ^-可以有效地分离和重新收集的，即使经过4的吸附-解吸循环，居消除速率为REO的一个新的记录₄ ^-吸附。这些材料的性能提出在TCO实际应用中有吸引力的机会₄ ^-去除环境和核废料。