کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7992023 | 1516145 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of magnetite nanoparticles from iron ore tailings using a novel reduction-precipitation method
ترجمه فارسی عنوان
سنتز نانو ذرات مگنتیتی از بتونه های سنگ آهن با استفاده از یک روش کاهش بارندگی جدید
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
مواد اکسید، سنتز شیمیایی، مغناطیس، میکروسکوپ الکترونی انتقال، پراش اشعه ایکس،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Magnetite nanoparticles successfully produced from a pregnant leach solution (PLS) of iron ore tailings via a simple reduction-precipitation method using Na2S2O3·5H2O reducing agent while the ratio of [Fe3+] to [S2O32â] were 3 and 2 in the presence and absence of nitrogen gas respectively. The produced nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning and transmission electron microscopy (SEM, TEM), Brunauer-Emmett-Teller (BET), and vibrating sample magnetometry (VSM). The achieved XRD and FTIR results confirmed the presence of Fe3O4 nanoparticles while SEM and TEM images displayed that the formed nanoparticles were spherical with an average diameter of 19â¯Â±â¯3â¯nm. The average surface area and the pore volume of produced nanoparticles were calculated to be 64.04â¯m2â¯gâ1 and 0.079â¯cm3/g, respectively using the BET method. By performing VSM analysis and estimation of the low magnetic remanence (Mr) and coercive field (Hc), it was concluded that the produced nanoparticles are highly ferromagnetic at the room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 749, 15 June 2018, Pages 336-343
Journal: Journal of Alloys and Compounds - Volume 749, 15 June 2018, Pages 336-343
نویسندگان
Esmaeel Darezereshki, Ahmad khodadadi Darban, Mahmoud Abdollahy, Ahmad jamshidi,