Rationally designing imidazole-based coordination polymers with high adsorption capacity for removing iodine

Enhanced Iodine Capture Using a Postsynthetically Modified Thione–Silver Zeolitic Imidazole Framework

“…The disproportionate change in capacity exceeds the simple loss in surface area and could suggest that iodine preferentially adsorbs to defective sites in our ZIF-8 material. This could comprise either dangling imidazole groups 63 or open Zn 2+ sites, 64 both of which can provide chemical interaction with iodine and hint at the strong role defects can play in the adsorption behavior of porous materials.…”

Enhanced iodine capture by the hydrogen bond reconstruction strategy

“…1–4 Nevertheless, it is crucial to address the issue of nuclear waste emission, which contains substantial amounts of radionuclides such as radioactive iodine ( 131 I & 129 I, with the potential to cause thyroid cancer and a long half-life of 1.57 × 10 7 years, respectively). 5,6 These hazardous waste products are generated through nuclear fission. Due to its ability to accumulate in the food chain and subsequently be ingested through food or water, excessive intake of radioactive iodine can disrupt normal metabolic processes in organisms, particularly in biological thyroid tissues, and may even lead to the development of thyroid carcinoma.…”

Hollow Bismuth-Based Nanoreactor with Ultrathin Disordered Mesoporous Silica Shell for Superior Radioactive Iodine Decontamination

“…3,4 The objective is to leverage the host−guest interactions between sorbents and radioactive iodine to achieve the highly efficient removal of radioactive pollutants. Thanks to the flourishing development of micro/mesoporous materials, an increasing number of emerging porous materials such as activated carbon, 5 zeolites, 6,7 metal−organic frameworks, 8,9 covalent organic frameworks, 10−13 and porous organic polymers, 14,15 among others, 16−18 have found applications in iodine removal. These materials, characterized by their intrinsic porosity, large specific surface area, and light elements such as C, H, O, and N, typically exhibit outstanding iodine sorption capabilities in laboratory settings.…”

“…The intricate task of efficiently eliminating radioactive iodine under the elevated temperatures characteristic of real spent fuel reprocessing procedures stands as a formidable hurdle within the nuclear industry. , This challenge has spurred a consensus among researchers on both domestic and international fronts, highlighting the pressing need for the development of innovative and effective solid sorption materials. , The objective is to leverage the host–guest interactions between sorbents and radioactive iodine to achieve the highly efficient removal of radioactive pollutants. Thanks to the flourishing development of micro/mesoporous materials, an increasing number of emerging porous materials such as activated carbon, zeolites, , metal–organic frameworks, , covalent organic frameworks, − and porous organic polymers, , among others, − have found applications in iodine removal. These materials, characterized by their intrinsic porosity, large specific surface area, and light elements such as C, H, O, and N, typically exhibit outstanding iodine sorption capabilities in laboratory settings.…”