One-pot solvent-free synthesis of MgFe₂O₄ nanoparticles from ferrous sulfate waste

ABSTRACT

This study proposed a one-pot solvent-free method to synthesize magnesium ferrite nanoparticles using ferrous sulfate waste as raw materials and provided a new idea for high-quality use of ferrous sulfate waste and was promising to be applied in industrialization. Magnesium ferrite nanoparticles (MgFe₂O₄) were successfully synthesized by a solid-reduction method using ferrous sulfate waste, pyrite and Magnesium carbonate as raw materials. X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) method, and superconducting quantum interference device magnetometer were applied to determine the characteristics of obtained samples. The mechanism of synthesizing magnesium ferrite was studied by TGA.

KEYWORDS:

• Magnesium ferrite
• nanoparticles
• ferrous sulfate waste
• solvent-free

Additional information

Funding

This work was supported by the Sichuan University-Panzhihua City Science and Technology Cooperation Special Fund for Titanium White by-product Ferrous Sulfate Preparation 500 tons/year Nano-iron Red Pigment and Co-production Sulfuric Acid Pilot Study under Grant [number 2018CDPZH-5]; Sichuan University “Chemical Star” Excellent Young Talents Training Program.