Journal of Inorganic Materials ›› 2019, Vol. 34 ›› Issue (8): 899-903.DOI: 10.15541/jim20190013

• RESEARCH LETTERS • Previous Articles     Next Articles

Synthesis of Zn, Mn doped Fe3O4 Nanoparticles with Tunable Size

CHENG Tian-Sheng1,2,3,PAN Jiong4,XU Ying-Ying1,2,3,BAO Qun-Qun1,2,3,HU Ping1(),SHI Jian-Lin1()   

  1. 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Shanghai Tech University, Shanghai 201210, China
    4. Tongji University, Shanghai 200092, China
  • Received:2019-01-06 Published:2019-08-20 Online:2019-05-29
  • Supported by:
    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)

Abstract:

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.

Key words: Zn,Mn-Fe3O4 nanoparticles, size regulation, magnetic characteristics

CLC Number: