Journal of Porous Materials

, Volume 19, Issue 1, pp 79–86 | Cite as

Adsorption of Imazamox herbicide onto Filtrasorb 400 activated carbon

  • Catherine Morlay
  • Etienne Quivet
  • Michaela Pilshofer
  • René Faure
  • Jean-Pierre Joly
Article

Abstract

Imazamox is an imidazolinone herbicide, a new class of pesticides, which can exist as cationic, anionic or neutral species in water. The adsorption isotherms of Imazamox onto Filtrasorb 400 (F400) activated carbon were determined varying the pH and the ionic strength of the aqueous medium. The results show that ionic strength has no significant effect on Imazamox uptake, contrary to pH, and that F400 has a high affinity for Imazamox. Moreover, it is found that Imazamox adsorbs onto F400 as its neutral form. The best fit of the experimental points is obtained with the Langmuir–Freundlich model, consistent with surface site heterogeneity. Finally, calculating Langmuir–Freundlich isotherms for various constant pH values, it is shown that the two plateaus observed in the experimental isotherms obtained at free pH are due to the variation of the pH along the isotherms.

Keywords

Filtrasorb 400 activated carbon Imazamox herbicide Adsorption Langmuir–Freundlich equation 

References

  1. 1.
    Council Directive 98/83/EC. Directive on the quality of water intended for human consumption. Official Journal of the European Communities L 330/332. 333.311.1998 (1998)Google Scholar
  2. 2.
    A.J. Krynitsky, S.J. Stout, H. Nejad, T.C. Cavalier, J. AOAC Int. 82, 956 (1999)Google Scholar
  3. 3.
    T.C. Farnham. The Pesticide Manual. A world Compendium, 12th edn. (British Crop Protection Council, UK, 2000)Google Scholar
  4. 4.
    H. Safarpour, R. Asiaie, S. Katz, J. Chromatogr. A 1036, 217 (2004)CrossRefGoogle Scholar
  5. 5.
    E. Quivet, R. Faure, J. Georges, J.O. Paisse, B. Herbreteau, P. Lanteri, J. Agr. Food Chem. 54, 3641 (2006)CrossRefGoogle Scholar
  6. 6.
    G. Mangels (ed.), Behavior of the Imidazolinone Herbicides in the Aquatic Environment. (CRC Press, Boca Raton, 1991)Google Scholar
  7. 7.
    Pesticide Fact Sheet-Imazamox (raptor pesticide) 22.05.1997: Office of Prevention, Pesticides and Toxic Substances (1997)Google Scholar
  8. 8.
    J.S. Noh, J.A. Schwarz, J. Colloid Interf. Sci. 130, 157 (1989)CrossRefGoogle Scholar
  9. 9.
    C. Morlay, J.-P. Joly, J. Porous Mater. 17, 535 (2009). doi:10.1007/s10934-009-9322-3
  10. 10.
    K.S.W. Sing, D.H. Everett, R.A.W. Haul, L. Moscou, R.A. Pierotti, J. Rouquerol et al., Pure Appl. Chem. 57, 603 (1985)CrossRefGoogle Scholar
  11. 11.
    C.H. Giles, A.P. D’Silva, I.A. Easton, J. Colloid Interface Sci. 47, 766 (1974)CrossRefGoogle Scholar
  12. 12.
    A.M. Duda, M. Dyba, H. Kozlowski, G. Micera, A. Pusino, J. Agr. Food Chem. 44, 3698 (1996)CrossRefGoogle Scholar
  13. 13.
    L.R. Radovic, C. Moreno-Castilla, J. Rivera-Utrilla, in Chemistry and Physics of Carbon, vol. 27, ed. by L.R. Radovic (Marcel Dekker, New-York, 2000), pp. 227Google Scholar
  14. 14.
    R. Sips, J. Chem. Phys. 18, 1024 (1950)CrossRefGoogle Scholar
  15. 15.
    R. Sips, J. Chem. Phys. 16, 490 (1948)CrossRefGoogle Scholar
  16. 16.
    R.W. Coughlin, F.S. Ezra, Environ. Sci. Technol. 2, 291 (1968)CrossRefGoogle Scholar
  17. 17.
    S. Haydar, M.A. Ferro-Garcia, J. Rivera-Utrilla, J.P. Joly, Carbon 41, 387 (2003)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Catherine Morlay
    • 1
    • 2
  • Etienne Quivet
    • 3
    • 4
  • Michaela Pilshofer
    • 1
    • 3
  • René Faure
    • 3
  • Jean-Pierre Joly
    • 1
  1. 1.Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5256 (IRCELYON)Villeurbanne CedexFrance
  2. 2.University of Central Florida, NanoScience Technology CenterOrlandoUSA
  3. 3.Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5180 (LSA)Villeurbanne CedexFrance
  4. 4.Universités d’Aix-Marseille I, II et III, CNRS UMR 6264 (LCP)Marseille Cedex 3France

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