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The European Physical Journal Special Topics

, Volume 167, Issue 1, pp 133–136 | Cite as

In situ observation of maghemite nanoparticle adsorption at the water/gas interface

  • M. PaulusEmail author
  • P. Degen
  • S. Schmacke
  • M. Maas
  • R. Kahner
  • B. Struth
  • M. Tolan
  • H. Rehage
Regular Article

Abstract

The adsorption of \(\gamma\hbox{-}{\rm Fe}_2{\rm O}_3\) (maghemite) nanoparticles at the aqueous solution/gas interface was investigated by x-ray reflectivity. Two different concentrations (0.07 g/L and 0.7 g/L) were probed. The x-ray reflectivities indicate the adsorption of nanoparticles at the liquid surface for the highly concentrated solution, while no nanoparticle adsorption could be detected at the surface of the low concentrated solution within several hours. The vertical electron density profile of the high concentration solution/gas interface indicates the formation of a low ordered monolayer of nanoparticles occupying only 6% of the interfacial region.

Keywords

Contact Angle European Physical Journal Special Topic Liquid Surface Maghemite Nanoparticle Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. A. Shukla, P. Degen, H. Rehage, J. Am. Chem. Soc. 129, 8056 (2007) Google Scholar
  2. P. Degen, A. Shukla, U. Boetcher, H. Rehage, Coll. Polym. Sci. 286, 159 (2008) Google Scholar
  3. J.D. Fisk, M. Rooth, A.M. Shaw, J. Phys. Chem. C 111, 2588 (2007) Google Scholar
  4. T. Takahashi, A.S. Dimitrov, K. Nagayama, J. Phys. Chem. 100, 3157 (1996) Google Scholar
  5. J.-P. Abid, M. Abid, C. Bauer, H.H. Girault, P.-F. Brevet, J. Phys. Chem. C 111, 8849 (2007) Google Scholar
  6. Y. Lin, A. Böker, H. Skaff, D. Cookson, A.D. Dinsmore, T. Emrick, T.P. Russell, Langmuir 21, 191 (2005) Google Scholar
  7. Y.-K. Park, S.-H. Yoo, S. Park, Langmuir 23, 10505 (2007) Google Scholar
  8. Y.S. Kang, D.K. Lee, C.S. Lee, P. Stroeve, J. Phys. Chem. B 106, 9341 (2002) Google Scholar
  9. L.-H. Chen, A. Dudek, Y.-L. Lee, C.-H. Chang, Langmuir 23, 3123 (2007) Google Scholar
  10. J.-W. Hu, G.-B. Han, B. Ren, S.-G. Sun, Z.-Q. Tian, Langmuir 20, 8831 (2004) Google Scholar
  11. K.S. Mayya, M. Sastry, Langmuir 14, 74 (1998) Google Scholar
  12. P. Piranski, Phys. Rev. Lett. 45, 569 (1980) Google Scholar
  13. B.M. Ocko, X.Z. Wu, E.B. Sirota, S.K. Sinha, M. Deutsch, Phys. Rev. Lett. 72, 242 (1994) Google Scholar
  14. S.K. Sinha, E.B. Sirota, S. Garoff, H.B. Stanley, Phys. Rev. B 38, 2297 (1998) Google Scholar
  15. M. Tolan, X-ray Scattering from Soft Matter Thin Films, Vol. 148 (Springer, Berlin, 1999) Google Scholar
  16. R. Frahm, J. Weigelt, G. Meyer, G. Materlik, Rev. Sci. Instrum. 66, 1677 (1995) Google Scholar
  17. L.G. Parratt, Phys. Rev. 95, 359 (1954) Google Scholar
  18. M.K. Sanyal, S. Hazra, J.K. Basu, A. Datta, Phys. Rev. B 58, R4258 (1998) Google Scholar
  19. B.P. Binks, Curr. Opinion Coll. Interf. Sci. 7, 21 (2002) Google Scholar
  20. C. Galindo-Gonzalez, J. de Vicente, M.M. Ramos-Tejada, M.T. Lopez-Lopez, F. Gonzalez-Caballero, J.D.G. Duran, Langmuir 21, 4410 (2005) Google Scholar
  21. F. Martynez-Lopez, M.A. Cabrerizo-Vylchez, R. Hidalgo-Alvarez, J. Coll. Interf. Sci. 232, 303 (2000) Google Scholar

Copyright information

© EDP Sciences and Springer 2009

Authors and Affiliations

  • M. Paulus
    • 1
    Email author
  • P. Degen
    • 2
  • S. Schmacke
    • 1
  • M. Maas
    • 2
  • R. Kahner
    • 2
  • B. Struth
    • 3
  • M. Tolan
    • 1
  • H. Rehage
    • 2
  1. 1.Fakultät Physik/DELTA, Technische Universität DortmundDortmundGermany
  2. 2.Fakultät Chemie, Technische Universität DortmundDortmundGermany
  3. 3.Deutsches Elektronen Synchrotron (HASYLAB), Notkestraße 85HamburgGermany

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