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Preparation and Characterization of α-Fe2O3 from Iron Mud by Hydrothermal Synthesis
Author(s) -
Shaojun Luo,
Suqin Li,
Peng Zhang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/562/1/012081
Subject(s) - nanocrystalline material , hydrothermal circulation , hydrothermal synthesis , materials science , chemical engineering , characterization (materials science) , magnetic hysteresis , hysteresis , nanocrystal , nuclear chemistry , mineralogy , magnetization , nanotechnology , chemistry , physics , magnetic field , quantum mechanics , engineering
As a solid waste, the synthesis of α -Fe 2 O 3 from iron sludge remains a challenge. In this experiment, α -Fe 2 O 3 nanocrystals were successfully synthesized by hydrothermal method using iron sludge as iron source, and the effects of reaction time and pH on the experimental results were studied. The synthesized products were characterized by X-ray diffraction, SEM, FT-IR and VSM analysis. The results show that the optimum synthesis time and pH are 6 h and 6 respectively. Under these conditions, the size of nanocrystalline α -Fe 2 O 3 is about 80 nm. According to the hysteresis loop, the powder synthesized is a weak magnetic material, which has broad application prospects in high frequency electromagnetic materials.

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