Synthesis and characterization of magnetic nanoparticles embedded in polyacrylonitrile nanofibers

Daniel Munteanu; Rodica-Mariana Ion; George-Costel Cocina

doi:10.1117/12.883788

3 December 2010 Synthesis and characterization of magnetic nanoparticles embedded in polyacrylonitrile nanofibers

Daniel Munteanu, Rodica-Mariana Ion, George-Costel Cocina

Proceedings Volume 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V; 78210J (2010) https://doi.org/10.1117/12.883788
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies, 2010, Constanta, Romania

Abstract

Nanomedicine is defined as the monitoring, repair, construction, and control of human biological systems at the molecular level using engineered nanodevices and nanostructures. Polyacrylonitrile (PAN) solution containing the iron oxide precursor iron (III) was electrospun and thermally treated to produce electrically conducting, magnetic carbon nanofiber mats with hierarchical pore structures. This paper discusses the synthesis of magnetite (Fe₃O₄) nanoparticles with mean crystallite size of 10 nm with polyacrylonitrile (PAN) as the protecting agent, creating nanofiber. The morphology and material properties of the resulting multifunctional nanofiber including the surface area were examined using various characterization techniques. Optical microscopy images show that uniform fibers were produced with a fiber diameter of ~600 nm, and this uniform fiber morphology is maintained after graphitization with a fiber diameter of ~330 nm. X-ray diffraction (XRD) studies reveal the size of Fe₃O₄ crystals. A combination of XRD and electron microscopy experiments reveals the formation of pores with graphitic nanoparticles in the walls as well as the formation of magnetite nanoparticles distributed throughout the fibers.

Citation Download Citation

Daniel Munteanu, Rodica-Mariana Ion, and George-Costel Cocina "Synthesis and characterization of magnetic nanoparticles embedded in polyacrylonitrile nanofibers", Proc. SPIE 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V, 78210J (3 December 2010); https://doi.org/10.1117/12.883788

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