From Radioactive Effluent to Drinking Water: Efficient Removal of Trace ⁹⁹TcO₄ ^-/ReO₄ ^- by Cationic Porous Aromatic Framework.

ABSTRACT: Efficient removal of ⁹⁹TcO₄ ^- from radioactive effluents while recovering drinking water remains a challenge. Herein, an excellent ReO₄ ^- (a nonradioactive surrogate of ⁹⁹TcO₄ ^-) scavenger is presented through covalently bonding imidazolium poly(ionic liquids) polymers with an ionic porous aromatic framework (iPAF), namely iPAF-P67, following an adsorption-site density-addition strategy. It shows rapid sorption kinetics, high uptake capacity, and exceptional selectivity toward ReO₄ ^-. Notably, the residual concentration of TcO₄ ^-/ReO₄ ^- in the radioactive wastewater after iPAF-P67 treatment is as low as 0.046 ppb, fully meeting the drinki

SUBMITTER: Pang LS 

PROVIDER: S-EPMC11884533 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature