کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1609058 | 1516257 | 2015 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Trisodium citrate-assisted synthesis of highly water-dispersible and superparamagnetic mesoporous Fe3O4 hollow microspheres via solvothermal process
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Highly water-dispersible and superparamagnetic mesoporous Fe3O4 hollow microspheres were prepared by a facile trisodium citrate-assisted solvothermal method. The composition, morphology and structure of the product were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared (FT-IR) spectroscopy, thermogravimetric (TG) analysis, Brunauer-Emmett-Teller (BET) and vibrating sample magnetometer (VSM). The results showed that the obtained Fe3O4 hollow microspheres were composed of nanoparticles about 21Â nm in diameter and exhibited superparamagnetic properties with relatively high saturation magnetization at room temperature. Trisodium citrate played a crucial role as an electrostatic stabilizer in the formation of Fe3O4 hollow microspheres and Ostwald ripening process was responsible for the formation of hollow structures. The Fe3O4 hollow microspheres were mesoporous and highly water-dispersible, indicating that the Fe3O4 hollow microspheres are ideal candidates for various biomedical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 636, 5 July 2015, Pages 34-39
Journal: Journal of Alloys and Compounds - Volume 636, 5 July 2015, Pages 34-39
نویسندگان
Xi Jiang, Fumin Wang, Wangfeng Cai, Xubin Zhang,