Capture of Organic Iodides from Nuclear Waste by Metal-Organic Framework-Based Molecular Traps

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Capture of Organic Iodides from Nuclear Waste by Metal-Organic Framework-Based Molecular Traps

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Title: Capture of Organic Iodides from Nuclear Waste by Metal-Organic Framework-Based Molecular Traps
Author(s):
Li, Baiyan;
Dong, Xinglong;
Wang, Hao;
Ma, Dingxuan;
Tan, Kui;
Jensen, Stephanie;
Deibert, Benjamin J.;
Butler, Joseph;
Cure, Jeremy;
Shi, Zhan;
Thonhauser, Timo;
Chabal, Yves J.;
Han, Yu;
Li, Jing
Date Created: 2017-09-07
Item Type: article
Keywords: Show Keywords
Abstract: Effective capture of radioactive organic iodides from nuclear waste remains a significant challenge due to the drawbacks of current adsorbents such as low uptake capacity, high cost, and non-recyclability. We report here a general approach to overcome this challenge by creating radioactive organic iodide molecular traps through functionalization of metal-organic framework materials with tertiary amine-binding sites. The molecular trap exhibits a high CH₃I saturation uptake capacity of 71 wt% at 150 ⁰C, which is more than 340% higher than the industrial adsorbent Ag⁰@MOR under identical conditions. These functionalized metal-organic frameworks also serve as good adsorbents at low temperatures. Furthermore, the resulting adsorbent can be recycled multiple times without loss of capacity, making recyclability a reality. In combination with its chemical and thermal stability, high capture efficiency and low cost, the adsorbent demonstrates promise for industrial radioactive organic iodides capture from nuclear waste. The capture mechanism was investigated by experimental and theoretical methods.
Publisher: Nature Publishing Group
ISSN: 2041-1723
Link to Related Resource: http://dx.doi.org/10.1038/s41467-017-00526-3
http://dx.doi.org/10.1038/s41467-017-00526-3
Persistent Link: http://hdl.handle.net/10735.1/6062
Bibliographic Citation: Li, Baiyan, Xinglong Dong, Hao Wang, Dingxuan Ma, et al. 2017. "Capture of organic iodides from nuclear waste by metal-organic framework-based molecular traps." Nature Communications 8: 485-485.
Terms of Use: CC BY 4.0 (Attribution)
©2017 The Authors
Sponsors: Financial support from the Materials Sciences and Engineering Division, Office of Basic Research Energy Sciences of the U.S. Department of Energy through Grant No. DE-FG02-08ER-46491

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CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)