Reverse Replacement in NH 2 -MIL-125 with 1,4-Dicarboxybenzene for Enhanced Photocatalytic Hydrogen Generation.

Authors :: Zhang Y
Wen C
Wu X
Liu PF
Yang HG
Source :: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2022 Oct 07; Vol. 28 (56), pp. e202200938. Date of Electronic Publication: 2022 Aug 22.
Publication Year :: 2022
Abstract: Metal-organic frameworks (MOFs) constructed by ligands and metal clusters, have been considered as a promising material for photocatalytic water splitting. In this work, a solvent-assisted ligand exchange (SALE) method has been applied through partial reverse substitution of the ligand in NH <subscript>2</subscript> -MIL-125 (Ti) by 1,4-dicarboxybenzene (BDC). This modification strategy can optimize the charge transfer dynamics together with the preserved light absorption, resulting in a 3.3 times higher hydrogen production rate compared to the pristine material under visible-light irradiation. This work broadens the field of ligand modifications of MOFs to boost the photocatalytic performance.<br /> (© 2022 Wiley-VCH GmbH.)

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