Abstract
Polyaniline (PANI) nanotubes containing Fe 3O 4 nanoparticles were synthesized under ultrasonic irradiation of the aqueous solutions of aniline, ammonium peroxydisulfate (APS), phosphoric acid (H 3PO 4), and the quantitative amount of Fe 3O 4. It was found that the obtained samples had the morphologies of nanotubes. TEM images and selected area electronic diffractions showed that Fe 3O 4 nanoparticles were embedded in PANI nanotubes. We thought that the mechanism of the formation of PANI/Fe 3O 4 nanotubes could be attributed to the ultrasonic irradiation and the H 3PO 4–aniline salt template. The molecular structure of PANI/Fe 3O 4 nanotubes were characterized by Fourier transform infrared spectroscopy (FTIR), UV-vis absorption spectra and X-ray diffraction (XRD). The conductivity and magnetic properties of the PANI nanotubes containing Fe 3O 4 nanoparticles were also investigated.
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