Stability and radioactive gaseous iodine-131 retention capacity of binderless UiO-66-NH2 granules under severe nuclear accidental conditions

Abstract

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Adsorption of iodine in metal–organic framework materials

“…A recent paper confirms that UiO-66-NH 2 is able to retain iodine under high radiation, temperature and humidity conditions and that the structure was unaffected. 119 The stability of MOFs when exposed to high levels of radiation [120][121][122] has highlighted the potential for them to be used, not only in the capture of radioactive iodine, but also for long-term storage.…”

Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation

“…Higher iodine loading of 1.75 g/g was reported in the classic HKUST‐1 [19] and a maximal uptake of 2.79 g/g has been observed in the UiO‐n analog of interpenetrated isoreticular networks based on the 4,4′‐[1,4‐phenylenebis(ethylene‐2,1‐diyl)]dibenzoate linker [20] . In a recent contribution, we also described the good stability of the UiO‐66‐NH 2 compound trapping radioactive 131 I isotope exposed to severe conditions (120 °C, humid gas flux, gamma irradiation) [21] …”

“…[20] In a recent contribution, we also described the good stability of the UiO-66-NH 2 compound trapping radioactive 131 I isotope exposed to severe conditions (120 °C, humid gas flux, gamma irradiation). [21] Despite these stimulating results, highlighted either the importance of functionalization and/or the pore aperture, [13] we may point out that there are few works reporting the adsorption of iodine under its gaseous form within MOF materials. Indeed, in this study, we focused our efforts on the systematic investigations of gaseous iodine adsorption in the zirconium-based UiO-n archetype.…”

Cover Feature: Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation (Chem. Eur. J. 14/2022)

“…[20] In our recent contribution, we also described the good stability of the UiO-66_NH2 compound trapping radioactive 131 I isotope exposed to severe conditions (120°C, humid gas flux, gamma irradiation). [21] Despite these stimulating results, highlighted either the importance of functionalization and/or the pore aperture, [13] we may point out that there are few works reporting the adsorption of iodine under its gaseous form within MOF materials. Indeed, in the present study, we focused our efforts on the systematic investigations of gaseous iodine adsorption in the zirconium-based UiO-n archetype.…”