In:
Nature Communications, Springer Science and Business Media LLC, Vol. 10, No. 1 ( 2019-04-04)
Kurzfassung:
Efficient anion recognition is of great significance for radioactive 99 TcO 4 − decontamination, but it remains a challenge for traditional sorbents. Herein, we put forward a tactic using soft crystalline cationic material with anion-adaptive dynamics for 99 TcO 4 − sequestration. A cucurbit[8]uril-based supramolecular metal-organic material is produced through a multi-component assembly strategy and used as a sorbent for effective trapping of TcO 4 − . Excellent separation of TcO 4 − /ReO 4 − is demonstrated by fast removal kinetics, good sorption capacity and high distribution coefficient. Remarkably, the most superior selectivity among metal-organic materials reported so far, together with good hydrolytic stability, indicates potential for efficient TcO 4 − removal. The structure incorporating ReO 4 − reveals that the supramolecular framework undergoes adaptive reconstruction facilitating the effective accommodation of TcO 4 − /ReO 4 − . The results highlight opportunities for development of soft anion-adaptive sorbents for highly selective anion decontamination.
Materialart:
Online-Ressource
ISSN:
2041-1723
DOI:
10.1038/s41467-019-09504-3
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2019
ZDB Id:
2553671-0