无机材料学报 ›› 2019, Vol. 34 ›› Issue (8): 899-903.DOI: 10.15541/jim20190013 CSTR: 32189.14.10.15541/jim20190013

• 研究快报 • 上一篇    下一篇

锌锰掺杂Fe3O4纳米颗粒的尺寸可控合成

程田盛1,2,3,潘炯4,徐鹰鹰1,2,3,鲍群群1,2,3,胡萍1(),施剑林1()   

  1. 1. 中国科学院 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海 200050
    2. 中国科学院大学, 北京 100049
    3. 上海科技大学, 上海 201210
    4. 同济大学, 上海 200092
  • 收稿日期:2019-01-06 出版日期:2019-08-20 网络出版日期:2019-05-29
  • 作者简介:CHENG Tian-Sheng (1994-), male, candidate of Master degree. E-mail: chengtsh@shanghaitech.edu.cn

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)

摘要:

锌锰掺杂的Fe3O4纳米颗粒具有优异的磁性能, 在生物医药领域有广泛的应用前景。磁性纳米颗粒的尺寸与其磁学性质以及生物磁性应用密切相关。因此, 为了适应不同生物应用对尺寸的需求, 研究其尺寸调控具有重要的意义。在本研究中, 我们采用高温热分解法, 通过加入还原剂1,2-十六烷二醇, 改变金属前躯体和回流时间成功制备了尺寸在5~20 nm的锌锰掺杂Fe3O4纳米颗粒。研究发现:强还原剂1,2-十六烷二醇的加入有利于合成小尺寸的纳米颗粒, 而以金属氯化物作为金属前躯体和延长回流时间可以进一步合成更大尺寸的纳米颗粒; 纳米颗粒的饱和磁化强度随着尺寸的增大而增大。

关键词: 锌锰掺杂Fe3O4纳米颗粒, 尺寸调控, 磁学性质

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

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