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Electrodeposition of maghemite (γ-Fe2O3) nanoparticles

Publication ,  Journal Article
Park, H; Ayala, P; Deshusses, MA; Mulchandani, A; Choi, H; Myung, NV
Published in: Chemical Engineering Journal
May 15, 2008
Published version (DOI)

Crystalline maghemite (γ-Fe2O3) nanoparticles were cathodically electrodeposited at room temperature from environmentally benign electrolytes. The shape, size, and production rate of nanoparticles were strongly influenced by electrochemical conditions (e.g. FeCl3 concentration, current density). X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analysis indicated that randomly oriented polycrystalline maghemite nanoparticles were synthesized with the (3 1 1) and (4 4 0) peaks as the main diffraction peaks. Transmission electron microscopy (TEM) images revealed that average particle size decreased from approximately 23 to 7 nm with increased current density. Magnetic saturation (MS) of maghemite nanoparticles was determined to be 66 emu g-1 (66 Am2 kg-1) at 300 K. The present maghemite nanoparticles showed a greater As(V) adsorption compared to iron nanoparticles, which might be attributed to a higher specific surface area. © 2007 Elsevier B.V. All rights reserved.

Duke Scholars

Marc Deshusses
Author Marc Deshusses Civil and Environmental Engineering

Published In

Chemical Engineering Journal

DOI

10.1016/j.cej.2007.10.025

ISSN

1385-8947

Publication Date

May 15, 2008

Volume

139

Issue

1

Start / End Page

208 / 212

Related Subject Headings

  • Chemical Engineering
  • 4016 Materials engineering
  • 4011 Environmental engineering
  • 4004 Chemical engineering
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0904 Chemical Engineering
 

Citation

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Park, H., Ayala, P., Deshusses, M. A., Mulchandani, A., Choi, H., & Myung, N. V. (2008). Electrodeposition of maghemite (γ-Fe2O3) nanoparticles. Chemical Engineering Journal, 139(1), 208–212. https://doi.org/10.1016/j.cej.2007.10.025
Park, H., P. Ayala, M. A. Deshusses, A. Mulchandani, H. Choi, and N. V. Myung. “Electrodeposition of maghemite (γ-Fe2O3) nanoparticles.” Chemical Engineering Journal 139, no. 1 (May 15, 2008): 208–12. https://doi.org/10.1016/j.cej.2007.10.025.
Park H, Ayala P, Deshusses MA, Mulchandani A, Choi H, Myung NV. Electrodeposition of maghemite (γ-Fe2O3) nanoparticles. Chemical Engineering Journal. 2008 May 15;139(1):208–12.
Park, H., et al. “Electrodeposition of maghemite (γ-Fe2O3) nanoparticles.” Chemical Engineering Journal, vol. 139, no. 1, May 2008, pp. 208–12. Scopus, doi:10.1016/j.cej.2007.10.025.
Park H, Ayala P, Deshusses MA, Mulchandani A, Choi H, Myung NV. Electrodeposition of maghemite (γ-Fe2O3) nanoparticles. Chemical Engineering Journal. 2008 May 15;139(1):208–212.
Journal cover image

Published In

Chemical Engineering Journal

DOI

10.1016/j.cej.2007.10.025

ISSN

1385-8947

Publication Date

May 15, 2008

Volume

139

Issue

1

Start / End Page

208 / 212

Related Subject Headings

  • Chemical Engineering
  • 4016 Materials engineering
  • 4011 Environmental engineering
  • 4004 Chemical engineering
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0904 Chemical Engineering