Journal
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
Volume 24, Issue 2, Pages 395-400Publisher
SPRINGER
DOI: 10.1007/s10904-013-9964-0
Keywords
Reverse microemulsion; Hydrothermal synthesis; Tin dioxide; Polypyrrole; Nanocomposites
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Nanostructured tin dioxide (SnO2) was prepared by hydrothermal reverse microemulsion. The typical quaternary microemulsion was formed with surfactant cetyltrimethyl ammonium bromide, cosurfactant n-pentanol, n-hexane, and water. Tin chloride and urea was used as the starting material to synthesize SnO2 nanoparticles under hydrothermal conditions. After that, pyrrole monomer was added into the reverse microemulsion system and polymerized at 0 A degrees C using ferric chloride (FeCl3) as the oxidant to synthesize SnO2/polypyrrole nanocomposites. The products were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), UV-Vis spectroscopy, transmission electron microscopy (TEM) and scanning electron microscope (SEM). The XRD patterns suggested that polypyrrole (PPy) did not modify the crystal structure of SnO2. The particle size of SnO2 and SnO2/PPy was calculated by XRD as 3.9 and 3.6 nm, respectively. FT-IR and UV-Vis spectra proved that SnO2 was successfully enwrapped by PPy with an interaction between them. TEM and SEM analysis showed that SnO2 was enwrapped in micro-porous PPy. However, the diameter of the composites observed by TEM and SEM images was increased compared with the results calculated by XRD due to the agglomeration of nanoparticles.
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