Evolution of surface structure of bilayer oleic acid-coated Fe3O4 nanoparticles during ethanol washing

Huabei Peng; Kun Yang; Yuhua Wen

doi:10.1117/12.838355

20 October 2009 Evolution of surface structure of bilayer oleic acid-coated Fe₃O₄ nanoparticles during ethanol washing

Huabei Peng, Kun Yang, Yuhua Wen

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74933T (2009) https://doi.org/10.1117/12.838355
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

The excess amount of oleic acid must be added to synthesize the bilayer oleic acid-coated Fe3O4 nanoparticles by onestep method. To know the evolution of surface structure during removing the residual oleic acid by ethanol washing, the surface structure of bilayer oleic acid-coated Fe₃O₄ nanoparticles synthesized by one-step method was studied using TEM, FTIR and TGA with washing times. The results showed that after five times washing, the bilayer oleic acid-coated structure still remained; after twenty times washing, the bilayer oleic acid-coated structure evolved into the single layer one.

Citation Download Citation

Huabei Peng, Kun Yang, and Yuhua Wen "Evolution of surface structure of bilayer oleic acid-coated Fe₃O₄ nanoparticles during ethanol washing", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74933T (20 October 2009); https://doi.org/10.1117/12.838355

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