Journal Article

PUBDB-2024-05469

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Chemically Tailored Metal‐Organic Frameworks for Enhanced Capture of Short‐ and Long‐Chain Per‐ and Polyfluoroalkyl Substances from Water

Loukopoulos, E. (Corresponding author)Extern* ; Marugán-Benito, S. ; Raptis, D. ; Tylianakis, E. ; Froudakis, G. E. ; Mavrandonakis, A. (Corresponding author) ; Platero-Prats, A. E. (Corresponding author)Extern*

2024
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/adfm.202409932  doi:10.3204/PUBDB-2024-05469

Abstract: Per- and polyfluoroalkyl substances (PFAS) are emerging as bioaccumulative and toxic water pollutants, posing a large threat to human and aquatic organisms. This threat is aggravated by their extreme persistence to common degradation methods. Adsorption is regarded as the most conventional method to treat these contaminants, however, existing sorbents present considerable limitations on performance. The development of more efficient PFAS adsorbents is therefore of urgent need. The class of metal-organic frameworks (MOFs) can hold great promise for these purposes, featuring porous materials with high tailoring potential. Herein, a series of functionalized Zr-MOFs have been designed with boosted capacities for the adsorption of short- and long-chain perfluorinated carboxylic acids of environmental interest. The approach relies on chemistry-based concepts to introduce targeted post-synthetic modifications that promote PFAS···MOF interactions, specifically through coordinative bonding and hydrophobic effects. In particular, the framework TFA-MOF-808 (TFA = trifluoroacetic acid) displays the highest capture capacities reported for MOF materials in this pollutant class. Mechanistic studies, assisted by advanced synchrotron characterization techniques and theoretical calculations, support a ligand exchange process occurring during the adsorption phenomena. The results demonstrate the potential of this design approach in developing advanced PFAS sorbents with optimal performance.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20230444 EC (I-20230444-EC) (I-20230444-EC)
3. CIVIS3i - The CIVIS Alliance Programme for International, Interdisciplinary, Intersectoral Research and Training for Experienced Researchers (101034324) (101034324)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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