Controllable Synthesis and Surface Modification of Fe3O4 Nanoparticles

LIU Li-na; QIN Rui-fei; ZHANG Yong-sheng; SUN Rui-rui; XIAO Hong-yu

doi:10.3788/fgxb20194004.0425

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Controllable Synthesis and Surface Modification of Fe₃O₄ Nanoparticles

Synthesis and Properties of Materials | 更新时间：2020-08-12

- Controllable Synthesis and Surface Modification of Fe₃O₄ Nanoparticles
- Chinese Journal of Luminescence Vol. 40, Issue 4, Pages: 425-431(2019)
- 作者机构：
  
  洛阳理工学院数学与物理教学部,河南洛阳,471023
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(51302128);Program for Youth Scholar Teachers Supporting Plan in Universities of Henan Province(2015GGJS-112);Natural Science Foundation of Henan Province(172102210398,18B140007,172102210404,16A140012)
- DOI：10.3788/fgxb20194004.0425
  CLC： O482.31
- Received：27 June 2018，
  
  Revised：30 August 2018，
  
  Published Online：21 September 2018，
  
  Published：05 April 2019
- 稿件说明：
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刘利娜, 秦瑞飞, 张永胜等. Fe3O4纳米粒子的可控制备及其表面改性[J]. 发光学报, 2019,40(4): 425-431

LIU Li-na, QIN Rui-fei, ZHANG Yong-sheng etc. Controllable Synthesis and Surface Modification of Fe3O4 Nanoparticles[J]. Chinese Journal of Luminescence, 2019,40(4): 425-431
刘利娜, 秦瑞飞, 张永胜等. Fe3O4纳米粒子的可控制备及其表面改性[J]. 发光学报, 2019,40(4): 425-431 DOI： 10.3788/fgxb20194004.0425.

LIU Li-na, QIN Rui-fei, ZHANG Yong-sheng etc. Controllable Synthesis and Surface Modification of Fe3O4 Nanoparticles[J]. Chinese Journal of Luminescence, 2019,40(4): 425-431 DOI： 10.3788/fgxb20194004.0425.

摘要

四氧化三铁（Fe

）因在细胞分离、靶向药物、磁共振成像等生物医学领域具有广阔的应用前景而成为研究热点。本文采用溶剂热法合成了Fe

纳米粒子，并详细研究了反应温度、反应时间和反应前驱体组成对Fe

结构和形貌的影响。实验结果表明，反应时间对球形纳米颗粒的尺寸影响不大，反应时间为12 h时，球的直径达到了最大，继续延长反应时间，球的尺寸保持不变；200℃容易生成大尺寸的Fe

纳米粒子；反应物的组成对Fe

纳米粒子的形貌也有一定的影响，当用水合肼代替乙二胺时，得到的是立方体形状的Fe

。为了增加Fe

纳米粒子的化学稳定性、生物相容性和作为药物载体的可能性，我们用Stber方法在Fe

纳米粒子的表面包覆了一层SiO

介孔分子筛，并探索了超声和机械搅拌对核壳结构形貌的影响，还研究了包覆前后样品的磁学性质。

Abstract

has a wide application prospect in biomedical fields such as cell separation

targeted drugs

magnetic resonance imaging and so on. In this work

nanoparticles were synthesized by solvothermal method

and the effects of reaction temperature

reaction time and precursor composition on the structure and morphology of Fe

were studied in detail. The reaction time had little effect on the size of the spherical nanoparticles. When the reaction time was 12 h

the diameter of the spheres reached the maximum. When the reaction time was increased

the size of the spheres kept constant. The reaction did not occur when the reaction temperature was 120℃. Face-centered cubic structure Fe

was obtained when the reaction temperature was 160

200

240℃. The diameter of Fe

was maximum when the reaction temperature was 200℃. Cube-shaped Fe

was obtained when ethylenediamine was replaced by hydrazine hydrate. In order to improve the chemical stability

biocompatibility and the possibility using Fe

nanoparticles as drug carriers

a layer of SiO

mesoporous molecular sieve was coated on the surface of Fe

by Stber method. The effects of ultrasonic and mechanical stirring on the morphology of core-shell structure were investigated. The magnetic properties of the samples before and after SiO

coating were also studied. The samples were all superparamagnetic before and after coating.

关键词

Keywords

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