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"Shake 'n Bake" Route to Functionalized Zr-UiO-66 Metal-Organic Frameworks
Roberto D'Amato1,2, Roberto Bondi1, Intissar Moghdad3
1Dipartimento di Chimica Biologia e Biotecnologia, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
Inorganic Chemistry
|September 2, 2021
Summary
Researchers developed a solvent-free "shake 'n bake" method for high-yield synthesis of zirconium-based metal-organic frameworks (MOFs). This green chemistry approach simplifies MOF production, yielding materials comparable to traditional solvent-intensive methods.
Area of Science:
- Materials Science
- Green Chemistry
- Nanotechnology
Background:
- Traditional synthesis of zirconium-based metal-organic frameworks (Zr-MOFs) often requires large volumes of solvents, posing environmental and economic challenges.
- Developing efficient and sustainable synthetic routes for MOFs is crucial for their widespread application.
Purpose of the Study:
- To introduce a novel, solvent-minimal synthetic procedure for producing UiO-66-like metal-organic frameworks (MOFs) with fcu topology.
- To demonstrate the efficacy of a mechanochemical approach for Zr-MOF synthesis.
Main Methods:
- A "shake 'n bake" procedure involving grinding Zr(IV) precursors and dicarboxylic linkers in a ball mill with minimal acetic acid and water.
- Incubation of the ground mixture at room temperature or 120 °C to complete the synthesis.
Main Results:
- High-yield synthesis of MOFs with fcu topology and UiO-66-like structure was achieved.
- The procedure successfully utilized various commercial Zr(IV) precursors and substituted dicarboxylic linkers.
- Material quality was comparable to products obtained via conventional solvo- or hydrothermal methods.
Conclusions:
- The developed "shake 'n bake" method offers a greener and more efficient alternative for Zr-MOF synthesis.
- Key factors for successful synthesis include linker acidity and precise control of water content.
- This approach significantly reduces solvent usage, aligning with sustainable chemistry principles.
