Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 346, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2022.112257
Keywords
Ce(IV)-based metal-organic frameworks; Photocatalysis; Green synthesis; Photocatalytic decarboxylative oxygenation
Categories
Funding
- program from the Outstanding Youth Project of Hunan Education Department [20B023]
- Postgraduate Scientific Research Innovation Project of Hunan Province [CX20220966]
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Cerium(IV)-based metal-organic frameworks (MOFs) have gained attention due to their potential in redox catalysis and photocatalysis, but the synthetic pathways are mainly solvothermal. Research on photocatalysis of Ce(IV)-MOFs is still in its early stages. We have developed a sustainable and green synthetic route for nanocrystalline Ce(IV)-MOFs with the UiO-66 structure. These MOFs showed promising photocatalytic activity for the decarboxylative oxygenation under blue light-emitting diodes (LEDs) irradiation and air.
Cerium(IV)-based metal-organic frameworks (MOFs) have gained a growing attention in both scientific and industrial spheres due to their unique potential in fields such as redox catalysis and photocatalysis. However, the synthetic pathways of Ce(IV)-MOFs are still extremely dominated by the conventional solvothermal conditions. Meanwhile, the research on photocatalysis of Ce(IV)-MOFs is still in its infancy, more experimental evidence is highly desirable to accelerate the development of this field. Here we present an innovative, widespread, green and sustainable synthetic route for nanocrystalline Ce(IV)-MOFs with the UiO-66 structure. Seven Ce-UiO-66-MOFs were successfully prepared at room temperature using water as the sole solvent in the presence of sodium acetate (NaAc). Furthermore, the photocatalytic activities of these Ce(IV)-MOFs for decarboxylative oxygenation of 4-fluorophenylacetic acid to give corresponding C-O bond-forming products 4-fluorobenzaldehyde and 4-fluorobenzyl alcohol under blue light-emitting diodes (LEDs) irradiation and air were studied. Control experiments revealed that Ce-UiO-66-BDC exhibited the optimized catalytic efficiency among these Ce (IV)-MOFs, and can be applied to various arylacetic acids.
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