Redox-Active Two-Dimensional Covalent Organic Frameworks (COFs) for Selective Reductive Separation of Valence-Variable, Redox-Sensitive and Long-Lived Radionuclides.
Angew Chem Int Ed Engl
; 59(10): 4168-4175, 2020 Mar 02.
Article
en En
| MEDLINE
| ID: mdl-31863631
ABSTRACT
We report the first example of 2D covalent organic framework nanosheets (Redox-COF1) for the selective reduction and inâ
situ loading of valence-variable, redox-sensitive and long-lived radionuclides (abbreviated as VRL nuclides). Compared with sorbents based on chemical adsorption and physical adsorption, the redox adsorption mechanism of Redox-COF1 can effectively reduce the impact of functional group protonation under the usual high-acidity conditions in chemisorption, and raise the adsorption efficiency from the monotonous capture by pores in physisorption. The adsorption selectivity for UO2 2+ reaches up to unprecedented ca. 97 % at pHâ
3, more than for any analogous adsorbing material.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Año:
2020
Tipo del documento:
Article