Synthesis and Characterization of Nano-γ-Fe2O3 by Sol–Gel Method
Abstract:The synthesis and characterization of nano-γ-Fe2O3 was described by sol–gel method. The optimal conditions for the formation of iron citric acid sol–gel were that the concentration of ferrite citrate was 0.8 mol/L, the pH was 7 and the reaction temperature was 40 °C. DTA, XRD, FT-IR, and TEM analysis were employed to characterize the properties of the as-prepared γ-Fe2O3. TG-DTA, XRD and FT-IR characterization indicate that the appropriate temperature for the formation of γ-Fe2O3 by Sol–gel method is 450 °C and the particle size of γ-Fe2O3 formed is about 32 nm by the Scherrer formula and TEM under the optimal conditions.
Document Type: Research Article
Publication date: November 1, 2011
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