期刊
JOURNAL OF INORGANIC MATERIALS
卷 34, 期 8, 页码 899-903出版社
SCIENCE PRESS
DOI: 10.15541/jim20190013
关键词
Zn; Mn-Fe3O4 nanoparticles; size regulation; magnetic characteristics
资金
- National Natural Science Foundation of China [51702349]
- Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures [SKL201704]
- Shanghai Yangfan Program [16YF1412800]
Zn, Mn doped Fe3O4 magnetic nanoparticles have broad application prospects in biomedicine for their excellent magnetic properties. Therein, the most remarkable property of magnetic nanoparticles is size-dependent biomagnetic applications, and size variation also affect their magnetic characteristics. Therefore, based on the specific requirements of size for various biological applications, it is critical to regulate their size. In this study, we synthesized 5-20 nm Zn, Mn doped Fe3O4 magnetic nanoparticles by changing reflux time duration, varying metal precursor and adding oil phase reducing agent (1,2-hexadecanediol). It is found that addition of 1,2-hexadecanediol is beneficial to the formation of smaller nanoparticles, while metal chloride and longer reflux time are helpful to prepare larger particles. Additionally, there exists a positive correlation between particle size and saturation magnetization.
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