Nuclear waste such as radioactive iodine has been received worldwide attention because of the effects of radiation on biological health. The efficient capture of radioactive iodine is of great importance for the safe utilization of nuclear energy. In this study, a functional porous organic polymer (P-TzTz) with high sulfur and nitrogen contents was synthesized by the catalyst-free hydrothermal process of dithiocarbanate (DTO) and benzo[1,2-b:3,4-b':5,6-b'']trithiophene-2,5,8-tricarbaldehyde (BTT-THO) in N,N-dimethylformamide under N₂ atmosphere. This tailor-made amorphous polymer exhibits high affinity and adsorption capacity for iodine owing to its effective electron-rich sorption sites, π-conjugated structure and hierarchically porous structure. P-TzTz displays an excellent reversible iodine uptake with capacity of 326 wt% for volatile iodine. After five cycles of volatile iodine adsorption, P-TzTz almost retains the same adsorption capacity with the original adsorbent. In addition, P-TzTz also exhibits excellent adsorptive performance for the removal of iodine from iodine/cyclohexane solution with an adsorption capacity of 494.09 mg g^-1, suggesting that P-TzTz may be also an effective adsorbent for the removal of iodine from solution.

由于辐射对生物健康的影响，放射性废物等核废料已受到全世界的关注。放射性碘的有效捕集对安全利用核能至关重要。在这项研究中，通过无催化剂的二硫代氨基甲酸酯（DTO）和苯并[1,2-b：3,4-b']的水热法合成了具有高硫和氮含量的功能性多孔有机聚合物（P-TzTz）： N，N-二甲基甲酰胺中，N ₂下的5,6-b'']三噻吩-2,5,8-三甲醛（BTT-THO）大气层。这种量身定制的无定形聚合物由于其有效的富电子吸附位，π共轭结构和分层多孔结构，对碘具有很高的亲和力和吸附能力。P-TzTz显示出优异的可逆碘吸收能力，对挥发性碘的吸收能力为326 wt％。经过五个周期的挥发性碘吸附后，P-TzTz几乎保持与原始吸附剂相同的吸附容量。此外，P-TzTz对碘/环己烷溶液中的碘去除也具有优异的吸附性能，吸附量为494.09 mg g ^-1，这表明P-TzTz可能也是从溶液中去除碘的有效吸附剂。 。