کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
235550 465640 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low temperature hydrothermal synthesis and characterization of iron oxide powders of diverse morphologies from spent pickle liquor
ترجمه فارسی عنوان
سنتز هیدروترمال پایین دما و خصوصی سازی پودر اکسید آهن از مورفولوژی متنوع از مشروب ترشیاب
کلمات کلیدی
مشروب ترشی سنتز هیدروترمال نانو ذرات، برو هماتیت، خواص مغناطیسی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Extracted Fe(III) from spent pickle liquor to produce nano- size iron oxide powder.
• Hydrothermal synthesis at low temperature produced iron oxide of uniform size.
• Effect of pH and time plays a critical role in type and morphology of Fe-oxide.
• Synthesized hematite and goethite particles show weak ferromagnetic properties.

Iron oxide nanoparticles (goethite and hematite) of various shapes have been synthesized through a simple hydrothermal reaction from the stripped solution of Fe(III) obtained after extraction and separation of Zn and Fe from spent pickle liquor. The influence of pH and synthesis time on the structure and morphology of the as-prepared α-Fe2O3 are investigated. It was possible to control the particle size and shape by adjusting the pH (2–12) of the starting solutions and time of synthesis (1–6 h). Under the appropriate conditions, rod-like α-FeOOH (goethite) and hexagonal α-Fe2O3 (hematite) materials of the uniform nano-crystalline structure were selectively synthesized in large quantities. The morphology and structure of the final products were investigated in detail by X-ray powder diffraction pattern (XRD), transmission electron microscopy (TEM), Raman spectroscopy and vibrational sample magnetometer (VSM). The probable mechanism of formation of uniform α-FeOOH and α-Fe2O3 nano-particles is discussed on the basis of the experimental results and characterization studies. The evaluation of the magnetic property has established the weak ferromagnetism characteristics of both goethite and hematite at room temperature.

Low temperature synthesis of iron oxide particles from purified solution of pickle liquor.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 276, May 2015, Pages 214–221
نویسندگان
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