Abstract
Abstract Synthesis of a nanocomposite containing iron sulfides and sulfur was carried out in ethylene glycol. Spherical-shaped Fe3O4 nanoparticles were used as the precursor. The structure of the FeS2/Fe3S4/S8 nanocomposite, as well as the mechanism of formation, are described with X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy, and Fourier transform infrared spectroscopy. Strong interaction between sulfur and oxygen was confirmed. Formation of the FeS2/Fe3S4/S8 nanocomposite was associated with the reaction between Fe3O4 and H2S, and the reaction between greigite and H2S produced by the decomposition of thioacetamide. Highly crystalline pyrite was formed in these reactions, while the sulfur and greigite appearing on the edges formed a highly disordered structure.
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