Synthesis and magnetic property of SiO2 coated Fe3O4/palygorskite

被引：8
|
作者：
He, Xi [1 ]
Yang, Qian [1 ,2 ]
Fu, Liangjie [1 ]
Yang, Huaming [1 ]
机构：
[1] Cent South Univ, Sch Minerals Proc & Bioengn, Ctr Mineral Mat, Changsha 410083, Peoples R China
[2] UCL, Dept Neurosci Physiol & Pharmacol, London WC1E 6BT, England
来源：
FUNCTIONAL MATERIALS LETTERS | 2015年 / 8卷 / 05期
关键词：
Magnetic nanocomposites; Fe3O4/palygorskite; SiO2; coating; atomic-level; interface; HOLLOW MESOPOROUS SPHERES; FE3O4-AT-SIO2; CORE; SHELL; NANOPARTICLES; NANOCOMPOSITES; MICROSPHERES; PALYGORSKITE; NANOMATERIAL; NANORODS; REMOVAL;
D O I：
10.1142/S1793604715500563
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
SiO2 coated Fe3O4/palygorskite magnetic nanocomposites (MNCs) were successfully synthesized via coprecipitation route. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), transmission electron microscopy (TEM) and magnetic properties. The results indicated that SiO2 was coated on the surface of Fe3O4/palygorskite through the hydrolysis of tetraethyl orthosilicate (TEOS) and the orientation changing of MNCs could be realized by external magnetic field. The interfaces of the composite were further elucidated at atomic level. We believe that the as-prepared SiO2 coated Fe3O4/palygorskite MNCs could show potential application in the fields of functional nanomaterials.
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页数：4
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