High effectiveness of pure polydopamine in extraction of uranium and plutonium from groundwater and seawater

Abstract

We demonstrate that complexation of pure polydopamine with uranium and plutonium species allows efficient retention of these actinides from groundwater and seawater.

Metal Ion-Directed Functional Metal–Phenolic Materials

“…Surface modification strategies mediated by phenolics or MPNs provide opportunities for material design to address environmental issues such as water pollution. , Considerable efforts have been devoted to purifying industrial wastewater using metal-directed phenolic materials (e.g., membranes and aerogels) for the removal of trace organic contaminants (Figure d), heavy metals (Figure e), − degradation of soluble organic dyes, , inhibition of microorganism growth (Figure f), and oil–water separation (Figure g). , For instance, a hydrophilic and underwater superoleophobic polyvinylidene fluoride (PVDF) membrane coated with EGCG and Ag + displayed a significantly higher permeate flux of 735 L (m 2 h) −1 for diesel-in-water emulsions compared to the uncoated PVDF membrane (0 L (m 2 h) −1 ) . The decomposition of soluble dyes was demonstrated using reduced Ag NPs with visible light photocatalytic activity .…”

Highly selective separation of tetravalent plutonium from complex system with novel phenylpyridine diamide ligands

“…Various techniques exist for plutonium separation, including membrane separation, 10,11 adsorption, 12,13 chemical precipitation, 14 ion exchange, 15–18 and solvent extraction. 19–23 Among them, solvent extraction has gained prominence owing to its inherent benefits such as continuous operation, adaptability, radiation stability, and solvent reusability.…”

“…Once recycled, they can be refashioned into nuclear fuel components, with separated plutonium also having potential applications in fast reactors. 7 Various techniques exist for plutonium separation, including membrane separation, 10,11 adsorption, 12,13 chemical precipitation, 14 ion exchange, [15][16][17][18] and solvent extraction. [19][20][21][22][23] Among them, solvent extraction has gained prominence owing to its inherent benets such as continuous operation, adaptability, radiation stability, and solvent reusability.…”

Bis‐Catecholamide‐Based Materials for Uranium Extraction

“…Therefore, there is a real challenge in developing new materials with a very strong affinity for uranium and very high selectivity. For this purpose, metalorganic frameworks (MOF) [23,24] as well as polydopamine materials [25][26][27] have been proposed.…”