Preparation of Nanometer Ferric Oxide Powders from Ferrous Sulfate by Improved Hydrolysis Method

Xi Rong Chen; Zao Ming Chen; De Yuan Hu

doi:10.4028/www.scientific.net/AMR.399-401.577

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 399-401Preparation of Nanometer Ferric Oxide Powders from...

Preparation of Nanometer Ferric Oxide Powders from Ferrous Sulfate by Improved Hydrolysis Method

Abstract:

Nanometer ferric oxide (α-Fe₂O₃) powders were prepared by improved hydrolysis method from industrial byproduct ferrous sulfate septihydrate (FeSO₄•7H₂O) and industrial grade ammonium bicarbonate (NH4HCO3). The structural properties were characterized by X-ray diffraction (XRD), scanning electron microscopy(SEM), transmission electron microscopy (TEM), difference of thermodynamic analysis (DTA). The results revealed that the phase of ferric oxide powders mainly consisted of spherical α-Fe₂O₃. The α-Fe₂O₃ particles were relatively uniform in size and the average size of particles is 40nm. The effects of many technical factors on growing and properties of nanometer ferric oxide particles, such as the reaction time and temperature, pH value of system, calcined temperature etc were discussed in this paper.

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Advanced Materials Research (Volumes 399-401)

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577-580

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https://doi.org/10.4028/www.scientific.net/AMR.399-401.577

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November 2011

Authors:

Xi Rong Chen, Zao Ming Chen, De Yuan Hu

Keywords:

Ferrous Sulfate, Hydrolysis Method, Nanometer Ferric Oxide

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