Magnetic SiO2/Fe3O4 colloidal crystals

Chih Kai Huang, Chia Hung Hou, Chii Chang Chen, Yen Ling Tsai, Li Ming Chang, Hung Sen Wei, Kuo Huang Hsieh, Chia Hua Chan

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We proposed a novel technique to fabricate colloidal crystals by using monodisperse SiO2 coated magnetic Fe3O 4(SiO2/Fe3O4) microspheres. The magnetic SiO2/Fe3O4 microspheres with a diameter of 700 nm were synthesized in the basic condition with ferric sulfate, ferrous sulfate, tartaric acid and tetraethyl orthosilicate (TEOS) in the reaction system. Monodisperse SiO2/Fe3O4 superparamagnetic microspheres have been successfully used to fabricate colloidal crystals under the existing magnetic field.

Original languageEnglish
Article number055701
JournalNanotechnology
Volume19
Issue number5
DOIs
StatePublished - 6 Feb 2008

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