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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 455-456Preparation and Surface Modification of Fe3O4@Sio2...

Preparation and Surface Modification of Fe₃O₄@Sio₂Composite Microspheres

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Abstract:

Magnetic Fe3O4@SiO2 composite microspheres were prepared using hydrolyzation of tetraethoxysilane and Fe3O4 nanoparticles as seeds, and then the resultant composite particles were modified with silane coupling agent 3-methacryloxypropyltrimethoxy silane. The products were characterized by scanning electron microscope, X-ray powder diffraction, fourier transform infrared spectroscopy, and vibrating-sanple magnetometry, respectively. The results clearly show that the magnetic particles have favorable superparamagnetism and remain strong magnetic response. Moreover, the duplex bonds of carbon functional groups from 3-methacryloxypropyltrimethoxy silane was introduced onto the suface of Fe3O4@SiO2 composite particles.

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Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

115-120

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.115

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Online since:

January 2012

Authors:

Kui Zhou, Ming Yang, Qian Sun, Zhi Zuo Yang

Keywords:

Composite Microspheres, Fe₃O₄, Magnetite, SiO₂

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