کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1250897 1496039 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Co-precipitation in aqueous solution synthesis of magnetite nanoparticles using iron(III) salts as precursors
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Co-precipitation in aqueous solution synthesis of magnetite nanoparticles using iron(III) salts as precursors
چکیده انگلیسی

An innovative quantitative synthetic method for preparing magnetite nanoparticles was achieved by co-precipitation in aqueous solution using only one single iron(III) salt as a precursor. A 2 Fe(III):1 Fe(II) mole ratio was first attained in solution by reducing iron(III) using KI solution, followed by filtering the iodine formed and hydrolyzing the filtrate by 25% ammonium hydroxide solution at pH 9–11. A high selectivity and atom economy percents were achieved indicating that the method is environmentally benign and green. The as-synthesized nanoparticles were characterized by fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), field emission transmission electron microscopy (FETEM), selected area electron diffraction (SAED), and 57Fe Mössbauer spectroscopy. Magnetite nanocrystals (d: 7.84 ± 0.05 nm) and nanorods (d: 6.3 ± 0.2 nm; l: 46.2 ± 0.9) formation was evident.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 8, Issue 2, March 2015, Pages 279–284
نویسندگان
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