Skip to main content

In situ XANES Study of Co2+ Ion Adsorption on Fe3O4 Nanoparticles in Supercritical Aqueous Fluids

MRS Online Proceedings Library volume 1383, pages 139–144 (2011)Cite this article

Abstract

In situ x-ray absorption spectroscopy (XAS) measurements were made on Fe3O4 nanoparticles in supercritical aqueous fluids to 500 °C in order to study their reactivity with Co2+ aqua ions and to investigate the structural properties of the reacted nanoparticles. The analyses of the x-ray absorption near edge structure (XANES) of XAS indicate that reactivity of Fe3O4 nanoparticles with Co2+ ions is minimal to 200 °C but becomes significant in the 250–500 °C temperature range. XANES and angular momentum projected density of states (l-DOS) calculations were carried out using the FEFF8.2 code and analyses were made using multi-peak fitting to determine the origin of the features exhibited in the spectra.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

USD 39.95

Price includes VAT (Canada)

References

  1. Technology and Applied R&D Needs for Materials under Extreme Environments (DOE, 2007).

  2. R.A. Mayanovic, A.J. Anderson, W.A. Bassett, and I.-M. Chou, Rev. Sci. Instrum. 78, 053904 (2007).

    Article  Google Scholar 

  3. R.A. Mayanovic, H. Yan, A.J. Anderson, P.R. Meredith, and W.A. Bassett, Journal of Physical Chemistry C, DOI: 10.1021/jp2067793 (2011).

    Google Scholar 

  4. W.A. Bassett, European Journal of Mineralogy 15, 773 (2003).

    Article  CAS  Google Scholar 

  5. I.-M. Chou, W.A. Bassett, A.J. Anderson, R.A. Mayanovic, and L. Shang, Rev. Sci. Instrum. 79, 115103 (2008).

    Article  Google Scholar 

  6. H. Yan, R.A. Mayanovic, A.J. Anderson, and P.R. Meredith, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 649, 207 (2011).

    Article  CAS  Google Scholar 

  7. W. Wagner, Journal of Physical and Chemical Reference Data 31, 387 (1999).

    Article  Google Scholar 

  8. A.L. Ankudinov, B. Ravel, J.J. Rehr, and S.D. Conradson, Phys. Rev. B 58, 7565 (1998).

    Article  CAS  Google Scholar 

  9. L. Hedin and B.I. Lundqvist, Journal of Physics C: Solid State Physics 4, 2064 (1971).

    Article  Google Scholar 

  10. A. Uheida, G. Salazar-Alvarez, E. Björkman, Z. Yu, and M. Muhammed, Journal of Colloid and Interface Science 298, 501 (2006).

    Article  CAS  Google Scholar 

  11. H. Yan, R.A. Mayanovic, A.J. Anderson, and P.R. Meredith, (Unpublished data).

  12. L.X. Chen, T. Liu, M.C. Thurnauer, R. Csencsits, and T. Rajh, J. Phys. Chem. B 106, 8539 (2002).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Physics, Astronomy and Materials Science, Missouri State University, Springfield, MO, 65897, USA

    Hao Yan, Robert A. Mayanovic & Joseph Demster

  2. Department of Earth Sciences, St. Francis Xavier University, P.O. Box 5000, Antigonish, Nova Scotia, B2G 2W5, Canada

    Alan J. Anderson

Authors
  1. Hao Yan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Robert A. Mayanovic
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Joseph Demster
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Alan J. Anderson
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Yan, H., Mayanovic, R.A., Demster, J. et al. In situ XANES Study of Co2+ Ion Adsorption on Fe3O4 Nanoparticles in Supercritical Aqueous Fluids. MRS Online Proceedings Library 1383, 139–144 (2011). https://doi.org/10.1557/opl.2012.183

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/opl.2012.183