Nuclear energy is considered as the best alternative to fossil fuel to meet the ever-increasing global electricity demand. Nuclear electricity generation is not associated with direct emission of greenhouse gases unlike thermal power plants. On the flipside, tackling nuclear waste and spent fuel is a major issue, which becomes even more challenging due to the presence of volatile radionuclides such as ¹³¹I and ¹²⁹I. In unfortunate events of accidental release of fission products in the environment, ¹³¹I and ¹²⁹I are considered as the most dreaded air pollutants. Therefore, development of materials for efficient and rapid uptake/storage of ¹²⁹I or ¹³¹I, is a research topic of utmost importance in this context. Herein, we report unique triptycene based covalent organic polymers (T_COPs) derived from benzene-1,3,5-tricarbaldehyde derivatives possessing varying number of hydroxy groups. The microporous T_COPs feature presence of abundant imine groups and π-rich environment. Interestingly, we observed that varying the number of hydroxy groups in T_COPs alter their surface area as well as their iodine uptake capacity. T_COPs exhibited ultra-high iodine uptake up to 4860 mg/g, which is superior compared to previously reported COPs. For practical applications, the T_COPs can be reused up to five cycles with smaller loss in the uptake performance - a desirable feature expected in a superior adsorbent. Our results reflect immense potential of these triptycene based COPs for environmental remediation.

核能被认为是化石燃料的最佳替代品，可以满足不断增长的全球电力需求。与火力发电厂不同，核能发电与温室气体的直接排放无关。另一方面，处理核废料和乏燃料是一个主要问题，由于¹³¹ I 和¹²⁹ I等挥发性放射性核素的存在，这变得更具挑战性。 在环境中意外释放裂变产物的不幸事件中，¹³¹ I和¹²⁹我被认为是最可怕的空气污染物。因此，开发用于高效快速吸收/储存¹²⁹ I 或^{131 的材料}I，是在这种情况下最重要的研究课题。在此，我们报告了独特的基于三苯乙烯的共价有机聚合物 (T_COPs)，其衍生自具有不同数量羟基的苯-1,3,5-三甲醛衍生物。微孔 T_COPs 具有丰富的亚胺基团和富含 π 的环境。有趣的是，我们观察到改变 T_COP 中羟基的数量会改变它们的表面积以及它们的碘吸收能力。T_COPs 表现出高达 4860 mg/g 的超高碘摄取量，这优于之前报道的 COPs。对于实际应用，T_COP 可以重复使用多达五个循环，吸收性能损失较小——这是优质吸附剂所期望的理想特性。我们的结果反映了这些基于三苯乙烯的 COP 在环境修复方面的巨大潜力。