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Chemical Research in Chinese Universities

, Volume 34, Issue 5, pp 857–861 | Cite as

Effect of Temperature on Thermal Treatment of Silica Coated Magnetic Nanoparticles

  • Yu Li
  • Penghong Zhang
  • Huipeng Zhao
  • Xiaoqiang Du
  • Junping Li
  • Laishuan Liu
Article
  • 12 Downloads

Abstract

In the quest for developing a catalyst with as many desired characteristics, a facile synthetic route was designed for the preparation of mesoporous silica coated magnetic nanoparticles(MSMNP) employing a colloid mill reactor. The composite particles were characterized by the techniques, such as nitrogen adsorption-desorption isotherms, scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffraction patterns (XRD), thermo-gravimetric analysis(TGA), Fourier transform infrared spectroscopy(FTIR) and vibrating sample magnetometer(VSM), etc. The analysis showed that the resulted MSMNP composites were composed of silica shell layers with open pores connecting channels and NiFe2O4 with spinel structure, so the thermal treatment temperature did not show significant effect on pore textural properties, and its specific surface areas were in the range of 443–474 m2/g, while pore volume of about 0.8 cm3/g with an average pore size of around 9.5 nm. The composites with super paramagnetic nature were encapsulated entirely with amorphous silica layers contributing to optimum porosity and abundant surface hydroxyl groups.

Keywords

Silica coated magnetic nanoparticle Thermal treatment Pore textural property Magnetic carrier 

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Copyright information

© Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Yu Li
    • 1
  • Penghong Zhang
    • 1
  • Huipeng Zhao
    • 1
  • Xiaoqiang Du
    • 1
  • Junping Li
    • 1
  • Laishuan Liu
    • 1
  1. 1.National Demonstration Center for Experimental Chemical Engineering Comprehensive Education, School of Chemical Engineering and TechnologyNorth University of ChinaTaiyuanP. R. China

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