Journal of Sol-Gel Science and Technology

, Volume 68, Issue 3, pp 365–373 | Cite as

Removal of Pb(II) ions from aqueous systems using thiol-functionalized cobalt-ferrite magnetic nanoparticles

  • Branka Viltužnik
  • Aljoša Košak
  • Yuriy L. Zub
  • Aleksandra LobnikEmail author
Original paper


We have investigated the removal of Pb2+ ions from water using thiol-functionalized, cobalt-ferrite, magnetic nanoparticles. These magnetic nanoparticles were prepared using the co-precipitation method and their surfaces were modified with tetraethoxy silane and 3-mercaptopropyl trimethoxysilane in order to provide a sufficient surface concentration of the thiol (–SH) functional groups. The adsorption of the Pb2+ ions from the aqueous solutions onto the thiol-functionalized, cobalt-ferrite, magnetic nanoparticles was studied. The investigated parameters include the pH value of the model water, the concentration of the adsorbent, the contact time and the temperature of adsorption. The removal of the Pb2+ was found to be greater at the higher pH values and increasing the temperature was also found to increase the removal of Pb2+ ions.


Cobalt-ferrite Tetraethoxy silane 3-Mercaptopropyl trimethoxysilane Pb2+ ions 



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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Branka Viltužnik
    • 1
  • Aljoša Košak
    • 1
    • 2
  • Yuriy L. Zub
    • 3
  • Aleksandra Lobnik
    • 1
    • 2
    Email author
  1. 1.Institute for Environmental Protection and SensorsMariborSlovenia
  2. 2.Faculty of Mechanical Engineering, Centre for Sensor TechnologyUniversity of MariborMariborSlovenia
  3. 3.Chuiko Institute of Surface Chemistry of NAS of UkraineKyivUkraine

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