Preparation of Fe3O4Spherical Nanoporous Particles Facilitated by Polyethylene Glycol 4000.

Nanoscale Research Letters
Li-Li Wang, Ji-Sen Jiang

Abstract

Much interest has been attracted to the magnetic materials with porous structure because of their unique properties and potential applications. In this report, Fe3O4nanoporous particles assembled from small Fe3O4nanoparticles have been prepared by thermal decomposition of iron acetylacetonate in the presence of polyethylene glycol 4000. The size of the spherical nanoporous particles is 100-200 nm. Surface area measurement shows that these Fe3O4nanoporous particles have a high surface area of 87.5 m2/g. Magnetization measurement and Mössbauer spectrum indicate that these particles are nearly superparamagnetic at room temperature. It is found that the morphology of the products is greatly influenced by polyethylene glycol concentration and the polymerization degree of polyethylene glycol. Polyethylene glycol molecules are believed to facilitate the formation of the spherical assembly.

References

Jul 11, 2002·Journal of the American Chemical Society·Shouheng Sun, Hao Zeng
Sep 3, 2002·Advanced Drug Delivery Reviews·Irène BriggerPatrick Couvreur
Jun 15, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Andre DitschT Alan Hatton
Apr 18, 2006·Journal of Colloid and Interface Science·L M YangY Y Dai
Jun 30, 2007·Journal of Biomedical Materials Research. Part a·Zhi-Feng GanPing Zhang
Sep 16, 2008·Journal of Materials Science. Materials in Medicine·Yong YangPing Zhang
Nov 15, 2008·Journal of the American Chemical Society·Won ChoMoonhyun Oh
Feb 12, 2009·ACS Nano·Johannes Kobler, Thomas Bein
Jan 19, 2001·Angewandte Chemie·Claus Feldmann, Hans-Otto Jungk

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Citations

Aug 15, 2014·Scientific Reports·Daizo YamaguchiKoki Watanabe

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Methods Mentioned

BETA
X-ray
transmission electron microscopy

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