Preparation of hydrophobic magnetite by a simple solvothermal method using oleylamine as reducing and surface modification agent

Micro & nano letters

article

Xiaoning Sun¹  Kangning Sun¹  Song Wang¹  Shupin Zhang¹  Zhaojun Liu¹  Yaping Wang¹ 

[1] Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University;Key Laboratory of Engineering Ceramics, Shandong University

关键词: magnetic particles;    nanoparticles;    iron compounds;    liquid phase deposition;    X-ray diffraction;    X-ray photoelectron spectra;    transmission electron microscopy;    scanning electron microscopy;    magnetometry;    hydrophobicity;    nanofabrication;    hydrophobic magnetite;    solvothermal method;    oleylamine reducing agent;    oleylamine surface modification agent;    Fe3O4 nanoparticle;    ferric chloride iron source;    X-ray diffraction;    XRD;    X-ray photoelectron spectrometry;    XPS;    transmission electron microscopy;    TEM;    scanning electron microscopy;    SEM;    vibrating sample magnetometry;    hydrophobicity;    Fe3O4;   

DOI  :  10.1049/mnl.2015.0502

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Hydrophobic magnetite (Fe 3 O 4 ) nanoparticles were prepared by a one-step solvothermal processing, in which ferric chloride (FeCl 3 ·6H 2 O) was used as the iron source. A systematic characterisation of the obtained samples was performed by X-ray diffraction, X-ray photoelectron spectrometry, transmission electron microscope, scanning electron microscope and vibrating sample magnetometer. The experimental results demonstrated that oleylamine not only plays a role as the reducing agent, but also as the surface modification agent. Hydrophobicity of the Fe 3 O 4 nanoparticles therefore, which are covered with oleylamine and long-chain alkanes, is achieved without any surface modification subsequently. With increasing aging time to 9 h, the average particle size of the product obtained is about 80 nm and its saturation magnetisation can reach a higher value, 89 emu/g.

【 授权许可】

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