Iodine Adsorption in Metal Organic Frameworks in the Presence of Humidity

Journal Article · Fri Mar 16 00:00:00 EDT 2018 · ACS Applied Materials and Interfaces

DOI:https://doi.org/10.1021/acsami.8b02651· OSTI ID:1455255

Banerjee, Debasis ^[1]; Chen, Xianyin; Lobanov, Sergey S. ; Plonka, Anna M. ; Chan, Xiaojun; Daly, John A.; Kim, Taejin ; Thallapally, Praveen K.  ^[1]; Parise, John B.

---

1. Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States

Used nuclear fuel (UNF) reprocessing represents a unique challenge when dealing with radionuclides such as isotopes of ⁸⁵Kr and ¹²⁹I₂, due to their volatility and long half-life. However, efficient capture of ¹²⁹I₂ (t_1/2 = 15.7 x 10⁶ years) from the nuclear waste stream can help to reduce the risk of releasing I₂ radionuclide into the environment and mitigate concerns about human health problems. Metal organic frameworks (MOFs) have been reported to be potential I₂ adsorbents: but the effect of water vapor, generally present in the reprocessing off-gas stream is rarely taken into account. Moisture stable porous MOFs, which can selectively adsorb I₂ in presence of water vapor is thus of great interest. Herein, the I₂ adsorption performance of two microporous MOFs is reported in presence of different humidity. I…π phenyl ring interactions are mainly responsible for the adsorption as revealed by single crystal XRD

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1455255
• Report Number(s): PNNL-SA-130831; AF5805010
• Journal Information: ACS Applied Materials and Interfaces, Vol. 10, Issue 13; ISSN 1944-8244
• Publisher: American Chemical Society (ACS)
• Country of Publication: United States
• Language: English

Related Subjects

MOFs
Iodine