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Novel pyrazolone-thiophene Schiff base functionalized Fe3O4 nanocomposite: core-shell structure and multi-technique
Marwa Abdel-Motaal1, Lotfi Beji2, Noura Kouki1
1Department of Chemistry, College of Science, Qassim University Buraidah 51452 Saudi Arabia.
RSC Advances
|November 10, 2025
Summary
Researchers synthesized a novel magnetic nanocomposite, Fe3O4@PyTh, by attaching a pyrazolone-thiophene Schiff base ligand to a magnetic core. This functionalization creates a stable, hybrid material with potential for advanced applications.
Area of Science:
- Materials Science
- Nanotechnology
- Organic Chemistry
Background:
- Magnetic nanoparticles offer unique properties for various applications.
- Surface functionalization is key to tailoring nanomaterial performance.
- Schiff base ligands are versatile building blocks in chemical synthesis.
Purpose of the Study:
- To synthesize and structurally characterize a novel surface-functionalized magnetic nanocomposite, Fe3O4@PyTh.
- To investigate the formation of an organic-inorganic hybrid interface using a pyrazolone-thiophene Schiff base.
- To demonstrate Schiff base functionalization as a viable route for designing advanced magnetic hybrid materials.
Main Methods:
- Synthesis of pyrazolone-thiophene Schiff base ligand via a one-pot condensation reaction.
- Surface functionalization of Fe3O4 nanoparticles with the synthesized Schiff base ligand.
- Comprehensive structural characterization using NMR, FTIR, XRD, SEM, EDX, TEM, and SAED.
Main Results:
- Successful synthesis and attachment of the pyrazolone-thiophene Schiff base ligand onto the Fe3O4 core.
- Confirmation of the preserved cubic spinel structure of the Fe3O4 core and formation of a uniform organic shell.
- Demonstration of increased particle size and elemental mapping confirming successful functionalization with N, S, and C.
Conclusions:
- The Fe3O4@PyTh nanocomposite exhibits structural stability and a distinct hybrid nature.
- Schiff base functionalization provides an adaptable strategy for creating advanced magnetic hybrid materials.
- The study offers experimental structural insights into the functionalization of magnetic nanocomposites.
