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Schiff Base Functionalized Cellulose: Towards Strong Support-Cobalt Nanoparticles Interactions for High Catalytic
Hicham Aitbella1,2, Larbi Belachemi1, Nicolas Merle2
1IMED-Lab, Team of Organometallic and Macromolecular Chemistry-Composite Materials, Department of Chemical Sciences, Faculty of Science and Technology, Cadi Ayyad University, Marrakech 40000, Morocco.
Molecules (Basel, Switzerland)
|April 27, 2024
Summary
A novel hybrid catalyst from date palm waste efficiently converts 4-nitrophenol to 4-aminophenol in minutes. This reusable cellulose-supported cobalt catalyst also shows promise for cinnamaldehyde hydrogenation.
Area of Science:
- Materials Science and Engineering
- Green Chemistry
- Nanotechnology
Background:
- Development of sustainable and efficient catalysts is crucial for green chemistry.
- Biomass waste valorization offers a sustainable source for advanced materials.
- Nanoparticle catalysts require robust supports for stability and reusability.
Purpose of the Study:
- To synthesize and characterize a novel hybrid catalyst using date palm biomass waste.
- To evaluate the catalytic performance of the hybrid catalyst in the hydrogenation of 4-nitrophenol.
- To explore the catalyst's applicability in the hydrogenation of cinnamaldehyde.
Main Methods:
- Date palm biomass was oxidized and derivatized to create a cellulosic support.
- Cobalt nanoparticles were immobilized onto the functionalized cellulose.
- Characterization using FT-IR, NMR, XRD, SEM, TEM, ICP, and XPS.
- Catalytic evaluation via hydrogenation of 4-nitrophenol and cinnamaldehyde.
Main Results:
- The hybrid catalyst demonstrated high efficiency in 4-nitrophenol hydrogenation, achieving complete conversion in 7 minutes.
- The catalyst exhibited a high rate constant (K = 8.7 × 10-3 s-1) and was recycled for eight cycles.
- Promising results were obtained for cinnamaldehyde hydrogenation, showing high conversion and selectivity towards cinnamyl alcohol.
Conclusions:
- A cost-effective and sustainable hybrid catalyst was successfully developed from date palm waste.
- The catalyst offers excellent performance for the reduction of nitroaromatics and unsaturated aldehydes under mild conditions.
- This work highlights the potential of biomass-derived materials in catalysis.
