Yinghui Xie, Qiuyu Rong, Fengyi Mao, Shiyu Wang, You Wu, Xiaolu Liu, Mengjie Hao, Zhongshan Chen, Hui Yang, Geoffrey I N Waterhouse, Shengqian Ma, Xiangke Wang
Radioiodine capture from nuclear fuel waste and contaminated water sources is of enormous environmental importance, but remains technically challenging. Herein, we demonstrate robust covalent organic frameworks (COFs) with antiparallel stacked structures, excellent radiation resistance, and high binding affinities toward I2 , CH3 I, and I3 - under various conditions. A neutral framework (ACOF-1) achieves a high affinity through the cooperative functions of pyridine-N and hydrazine groups from antiparallel stacking layers, resulting in a high capacity of ~2...
March 26, 2024: Nature Communications