“Boarding-Up”: Radiation Damage and Radionuclide Leaching Kinetics in Linker-Capped Metal–Organic Frameworks

Abstract

For the first time, we report the ability to control radionuclide species release kinetics in metal–organic frameworks (MOFs) as a function of postsynthetic capping linker installation, which is essential for understanding MOF potential as viable radionuclide wasteform materials or versatile platforms for sensing, leaching, and radionuclide sequestration. The radiation damage of prepared frameworks under γ radiation has also been studied. We envision that the presented studies are the first steps toward utilization of the reported scaffolds for more efficient nuclear waste administration.

Unprecedented Radiation Resistant Thorium–Binaphthol Metal–Organic Framework

“…Irradiation studies have been conducted on select few MOFs, such as transition-metal-based MIL-100, HKUST-1, and UiO-66. ,− Recently, Th 4+ -based MOFs SINAP-7 and -8 were reported to withstand up to 200 kGy of irradiation . The highest radiation dose that has been applied to an MOF is 2 MGy of γ-irradiation in the case of Al 3+ -based MIL-100, which displayed notable stability during irradiation .…”

Beyond structural motifs: the frontier of actinide-containing metal–organic frameworks

“…In a similar vein, Shustova and coworkers studied γ-irradiation of a Zr-based MOF, Zr 6 O 4 (OH) 8 (Me 2 BPDC) 4 , for a total dose of 19.7 Mrad (209 hours at a dose rate of 94.3 krad hour −1 ), and the MOF still maintained its structural integrity according to crystallographic data. 147 …”

Heterometallic Actinide‐Containing Photoresponsive Metal‐Organic Frameworks: Dynamic and Static Tuning of Electronic Properties

“…Hierarchical hybrids, such as metal‐organic frameworks (MOFs), allow for performing studies of material properties in a stepwise manner by varying one parameter at a time (Scheme 1 a). For instance, they serve as a multifaceted platform for the integration of a second or third metal, guests, or organic linkers through various pathways (e.g., backbone, side group, or capping linker) with the possibility for complete replacement of one linker by another [23–26] . Merging the distinct advantages of MOFs (e.g., ultra‐high porosity, crystallinity, robustness, and modularity) with the characteristics of actinides (e.g., large cations and f ‐electrons) could be the key to repurposing radionuclide waste or even extend future applications of actinide‐based hybrids to the practical realm.…”