Szczegóły publikacji

Opis bibliograficzny

Screening metal-organic frameworks for separation of binary solvent mixtures by compact NMR relaxometry / Marc Wagemann, Natalia Radzik, Artur KRZYŻAK, Alina Adams // Molecules [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1420-3049. — 2021 — vol. 26 iss. 12 art. no. 3481, s. 1–12. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 10–12, Abstr. — Publikacja dostępna online od: 2021-06-08


Autorzy (4)


Słowa kluczowe

binary mixtureseparationMOFlow field NMR relaxometry

Dane bibliometryczne

ID BaDAP134598
Data dodania do BaDAP2021-06-14
Tekst źródłowyURL
DOI10.3390/molecules26123481
Rok publikacji2021
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Creative Commons
Czasopismo/seriaMolecules

Abstract

Metal–organic frameworks (MOFs) have great potential as an efficient alternative to current separation and purification procedures of a large variety of solvent mixtures—a critical process in many applications. Due to the huge number of existing MOFs, it is of key importance to identify high-throughput analytical tools, which can be used for their screening and performance ranking. In this context, the present work introduces a simple, fast, and inexpensive approach by compact low-field proton nuclear magnetic resonance (NMR) relaxometry to investigate the efficiency of MOF materials for the separation of a binary solvent mixture. The mass proportions of two solvents within a particular solvent mixture can be quantified before and after separation with the help of a priori established correlation curves relating the effective transverse relaxation times T2eff and the mass proportions of the two solvents. The new method is applied to test the separation efficiency of powdered UiO-66(Zr) for various solvent mixtures, including linear and cyclic alkanes and benzene derivate, under static conditions at room temperature. Its reliability is demonstrated by comparison with results from 1H liquid-state NMR spectroscopy.