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One-pot Synthesis of Superparamagnetic Polyaniline Microtubes and Magnetite Nanoparticles Via Self-Assembly Method

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In this work, Polyaniline (PANI) microtubes and magnetite (Fe3O4) nanoparticles have been synthesized by using ammonium persulphate as oxidant via in-situ chemical oxidative polymerization in the presence of organic sulfonic acid. The resulting PANI / Fe3O4 nanocomposite materials have been characterized by X-ray diffraction, UV-visible spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, vibrating sampling magnetometer, and thermogravimetric analysis. Spectroscopic results indicated formation of Fe3O4 nanoparticles on PANI micro tubes. Morphologies of PANI / Fe3O4 nanocomposites were found to be dependent on the molar ratios of aniline to organic acid. As obtained PANI / Fe3O4 nanocomposites contained Fe3O4 particles in the range of 3-7 nm in size which showed superparamagnetism. Nanocomposites exhibited higher thermal stability compared to pure PANI.

Keywords: Magnetite nanoparticles; UV-visible spectroscopy; X-ray diffraction; polyaniline tubes; self-assembly; superparamagnetism; thermal stability

Document Type: Research Article


Publication date: April 1, 2012

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  • Current Nanoscience publishes authoritative reviews and original research reports, written by experts in the field on all the most recent advances in nanoscience and nanotechnology. All aspects of the field are represented including nano- structures, synthesis, properties, assembly and devices. Applications of nanoscience in biotechnology, medicine, pharmaceuticals, physics, material science and electronics are also covered. The journal is essential to all involved in nanoscience and its applied areas.

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