Single Phase Pyrite Synthesized via Hydrothermal Method

Abstract:

Single phase pyrite has been successfully prepared via the reaction of FeSO₄·7H₂O, S and Na₂S·9H₂O using hydrothermal method. The X-ray powder diffraction measurements confirm the formation of iron disulfides in the pH range of 1-12. Marcasite is formed at pH<4, the marcasite contents in the final products increasing with decreasing pH; when the pH is higher than 4, the final product is single phase pyrite. Scanning electron microscope (SEM) images reveal that both the pH and temperatures have significant effects on the size and morphology of final products. Pyrite micro-nanocubes of 200-400nm in length were synthesized at pH=9. Detailed information of the experimental results are analyzed in the results and discussion part.

• Periodical: Key Engineering Materials (Volumes 562-565)
• Pages: 136-140
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.562-565.136
• Online since: July 2013
• Authors: Zhao Tang Yang, Xiao Jiang Liu, Jing Song Liu, Xiu Li Feng
• Keywords: Hydrothermal Method, Micro-Nanocubes, Pyrite

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