High efficiency biosorption of Uranium (VI) ions from solution by using hemp fibers functionalized with imidazole-4,5-dicarboxylic

An imidazole functionalized porous organic polymer for the highly efficient extraction of uranium from aqueous solutions

“…Up to now, many imidazole functionalized polymers and other matrices have been employed for the selective enrichment of uranium. 31–35 For example, in 2021, Qiu and his co-workers reported several hydroxylation imidazole linked covalent organic polymers to remove uranium. 31 Beneficial for the hierarchical structure of the adsorbent and synergistic effects from hydroxyl and imidazole linkages, these adsorbents demonstrated a high extraction ability for uranium.…”

Study on Uranium Adsorption Property of Carbon Nanotubes Prepared by Molten Salt Electrolysis

“…11−13 Nanocarbon-based materials have shown many benefits of adsorption. 14 Silica-based materials, 15,16 titanium dioxide-based materials, 17 hydrogels, 18,19 magnetic materials, 20,21 biosorbents, 22,23 and nanocarbon-based materials 24−26 offer high levels of adsorption. In recent years, the carbon nanomaterials prepared by molten salt electrolysis have attracted the attention of researchers.…”

“…Chemical separation, membrane separation, solvent extraction, adsorption, and many other methods have been employed to remove uranium from uranium-containing wastewater. − The adsorption method is widely used due to its low cost, simple operation, and low pollution. − Nanocarbon-based materials have shown many benefits of adsorption …”

Highly efficient extraction of uranium from aqueous solution using imidazole functionalized core–shell sunflower-like superparamagnetic polymer microspheres: understanding adsorption and binding mechanisms

“…Up to now, many imidazole functionalized polymers and other matrices have been employed for the selective enrichment of uranium. 24–27 For example, in 2020, imidazole functionalized hemp fibers (denoted as HF-H 3 IMDC 3 ) were developed to extract uranium from aqueous solutions. The result showed that the maximum adsorption capacity of HF-H 3 IMDC 3 could reach up to 469.48 mg g −1 at pH 7.0 and 313 K. Moreover, HF-H 3 IMDC 3 also exhibited good selectivity and reusability.…”

“…The result showed that the maximum adsorption capacity of HF-H 3 IMDC 3 could reach up to 469.48 mg g −1 at pH 7.0 and 313 K. Moreover, HF-H 3 IMDC 3 also exhibited good selectivity and reusability. 24 Subsequently in 2021, Qiu and his co-workers also reported several hydroxylation imidazole linked covalent organic polymers to remove uranium. 27 Benefiting from the hierarchical structure of the adsorbent and synergistic effects from hydroxyl and imidazole linkages, these adsorbents demonstrated a high extraction ability for uranium.…”