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Abstract Herein, we firstly develop porous organic cage (POC) as an efficient platform for highly effective radioactive iodine capture under industrial operating conditions (typically ≥150 °C), ≤150 ppmv of I 2 ). Due to the highly dispersed and readily accessible binding sites as well as sufficient accommodating space, the constructed NKPOC‐DT‐(I − ) (NKPOC=Nankai porous organic cage) demonstrates a record‐high I 2 uptake capacity of 48.35 wt % and extraordinary adsorption capacity of unit ionic site (~1.62) at 150 °C and 150 ppmv of I 2 . The I 2 capacity is 3.5, 1.6, and 1.3 times higher than industrial silver‐based adsorbents Ag@MOR and benchmark materials of TGDM and 4F‐iCOF‐TpBpy‐I − under the same conditions. Furthermore, NKPOC‐DT‐(I − )Me exhibits remarkable adsorption kinetics (k 1 =0.013 min −1 ), which is 1.2 and 1.6 times higher than TGDM and 4F‐iCOF‐TpBpy‐I − under the identical conditions. NKPOC‐DT‐(I − )Me thus sets a new benchmark for industrial radioactive I 2 adsorbents. This work not only provides a new insight for effectively enhancing the adsorption capacity of unit functional sites, but also advances POC as an efficient platform for radioiodine capture in industry.
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Xiongli Liu
Zhiyuan Zhang
Feng Shui
Angewandte Chemie International Edition
Nankai University
University of North Texas
Qingdao University of Science and Technology
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Liu et al. (Tue,) studied this question.
www.synapsesocial.com/papers/68e5e6e9b6db64358757b66f — DOI: https://doi.org/10.1002/anie.202411342
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