Engineering a Meltable MOF to Tune Liquid Transition and Promote Coenzyme Regeneration

Area of Science:

• Materials Science
• Chemistry
• Nanotechnology

Background:

• Metal-organic frameworks (MOFs) are emerging materials with tunable properties.
• Glassy MOFs offer unique advantages for functionalization and applications.
• Modulating the liquid phase of MOFs is a new frontier in materials science.

Purpose of the Study:

• To fabricate a novel bimetallic glassy MOF using a liquid-liquid transition process.
• To investigate the properties and photocatalytic efficiency of the new material.
• To explore applications in coenzyme regeneration.

Main Methods:

• Fabrication of a bimetallic glassy MOF (Co/Zn-a_gZIF-62-ipy) via liquid-liquid transition and melt-quenching.
• Introduction of a Schiff base-cobalt functional group into Zn-ZIF-62.
• Characterization of material properties, including glass-forming capability and ion distribution.
• Evaluation of visible light photogeneration efficiency for nicotinamide adenine dinucleotide (NADH) regeneration.

Main Results:

• Successfully synthesized a bimetallic glassy MOF (Co/Zn-a_gZIF-62-ipy) with high glass-forming capability.
• Achieved uniform distribution of bimetallic ions within the glassy MOF structure.
• Demonstrated significantly enhanced visible light photogeneration efficiency of NADH compared to Co-doped ZIF-62 glass.
• Established a novel method for modulating MOF liquid phases for functional material development.

Conclusions:

• The liquid-liquid transition process is effective for creating functional glassy MOFs.
• The bimetallic glassy MOF exhibits superior photocatalytic performance for NADH regeneration.
• This work provides insights into developing advanced glassy MOF photocatalysts for various applications.