Exfoliation of a Two-Dimensional Metal-Organic Framework for Enhanced Photocatalytic CO2 Reduction.
Inorg Chem
; 62(22): 8472-8477, 2023 Jun 05.
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| ID: mdl-37224063
ABSTRACT
A two-dimensional metal-organic framework, FICN-12, was constructed from tris[4-(1H-pyrazole-4-yl)phenyl]amine (H3TPPA) ligands and Ni2 secondary building units. The triphenylamine moiety in the H3TPPA ligand readily absorbs UV-visible photons and sensitizes the Ni center to drive photocatalytic CO2 reduction. FICN-12 can be exfoliated into monolayer and few-layer nanosheets with a "top-down" approach, which exposes more catalytic sites and increases its catalytic activity. As a result, the nanosheets (FICN-12-MONs) showed photocatalytic CO and CH4 production rates of 121.15 and 12.17 µmol/g/h, respectively, nearly 1.4 times higher than those of bulk FICN-12.
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2023
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