Synthesis and surfactant size regulation of nanoparticles of maghemite (γ-Fe2O3)

被引：0
|
作者：
Rather, Mushtaq Ahmad [1 ]
机构：
[1] Natl Inst Technol, Chem Engn Dept, Srinagar, Jammu & Kashmir, India
来源：
EMERGING TRENDS IN ENGINEERING, SCIENCE AND TECHNOLOGY FOR SOCIETY, ENERGY AND ENVIRONMENT | 2018年
关键词：
Nanoparticles; Iron oxide; Surfactant; Paramagnetism; IRON-OXIDE NANOPARTICLES; RELEASE;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this study, nanoparticles of maghemite (gamma-Fe2O3) were synthesized and their size regulated by utilizing different amounts of surfactant, Polyethylene Glycol (PEG)-4000. The amount of surfactant was varied in order to analyze its effect upon the particle size. The final synthesized particles had a mean size of 40, 23, 15, and 11 nm for various surfactant quantities. X-ray diffraction results confirmed that the as-synthesized iron oxide nanoparticles were gamma-Fe2O3. Superconducting Quantum Interference Device (SQUID) measurements showed the highest saturation magnetization value of 68 emu/gm at room temperature when a surfactant quantity of 0.5 g was used under the given conditions. The particle shape was almost a sphere, as confirmed by transmission electron microscopy.
引用
收藏
页码：657 / 661
页数：5
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