Issue 25, 2023

Enhancement of catalytic hydrolysis activity for organophosphates by the metal–organic framework MOF-808-NH2via post-synthetic modification

Abstract

Metal–organic frameworks (MOFs) necessitate buffers or basic amine moieties for high activity and turnover in the hydrolysis of organophosphates. While polymeric amine buffers can be integrated with a MOF, all solid-state formulations suffer from active site poisoning of the secondary building units (SBUs) within MOFs which inhibits further catalytic turnover. Herein, we developed a simple soaking procedure with a basic aqueous solution that reactivates the active sites of spent MOFs after organophosphate catalysis. Moreover, we develop amine functionalized MOF-808 derivatives through de novo synthesis with H3-BTC-NH2 (BTC = 1,3,5-benzenetricarboxylic acid) and post-synthetic modification (PSM) that are highly active for organophosphate hydrolysis under non-buffered aqueous conditions.

Graphical abstract: Enhancement of catalytic hydrolysis activity for organophosphates by the metal–organic framework MOF-808-NH2via post-synthetic modification

Supplementary files

Article information

Article type
Paper
Submitted
30 Mar 2023
Accepted
09 Jun 2023
First published
12 Jun 2023

J. Mater. Chem. A, 2023,11, 13300-13308

Author version available

Enhancement of catalytic hydrolysis activity for organophosphates by the metal–organic framework MOF-808-NH2via post-synthetic modification

S. J. Garibay, T. M. Tovar, I. O. Iordanov, G. W. Peterson and J. B. DeCoste, J. Mater. Chem. A, 2023, 11, 13300 DOI: 10.1039/D3TA01898A

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