Synthesis of magnetic core-shell structure Fe<sub>3</sub>O<sub>4</sub>@MCM-41 nanoparticle by vesicles in aqueous solutions

Weiming Song; Xuesong Liu; Ying Yang; Xuejia Han; Qigang Deng

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Synthesis of magnetic core-shell structure Fe₃O₄@MCM-41 nanoparticle by vesicles in aqueous solutions

材料与产品工程 | Updated：2026-01-06

- Synthesis of magnetic core-shell structure Fe₃O₄@MCM-41 nanoparticle by vesicles in aqueous solutions
- Chinese Journal of Chemical Engineering Vol. 23, Issue 8, Pages: 1398-1402(2015)
- Affiliations：
  
  College of Chemistry and Chemical Engineering of Qiqihar University,Qiqihar,China,161000
- Author bio：
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- DOI：
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- Published：2015
- Accepted：
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摘要

Abstract

In this study

magnetic core-shell structure Fe

@MCM-41 nanoparticles were synthesized with vesicles as soft templates. In the preparation

FeCl

and tetraethy orthosilicate (TEOS) were selected as Fe processor and Si precursor

respectively. Stable vesicles first formed in 0.03 mol·L

-1

1:2 mixture of anionic surfactant sodium dodecyl sulfate and cationic surfactant cetyltrimethyl ammonium bromide. Then

TEOS was added in the vesicle aqueous solution

leading to a highly dispersed solution. After high-temperature calcination

@MCM-41 nanoparticles were obtained. Their structure and morphology were characterized by Saturn Digisizer

transmission electron microscope and vibrating samplemagneto-meter. The results indicate that the vesicles are spherical and their size could be tuned between 20 and 50 nm. The average grain diameter of synthesize magnetic core-shell Fe

@MCM-41 particles is 100-150 nm and most of the mare in elliptical shape. The dispersion of magnetic particles is very good and magnetization values are up to 33.44 emu·g

-1

which are superior to that of other Fe

materials repor

ted.

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Synthesis of magnetic core-shell structure Fe3O4@MCM-41 nanoparticle by vesicles in aqueous solutions

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Abstract

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Synthesis of magnetic core-shell structure Fe₃O₄@MCM-41 nanoparticle by vesicles in aqueous solutions