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

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Abstract

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.

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Acknowledgments

“Operation part financed by the European Union, European Social Fund. Operation implemented in the framework of the Operational Programme for Human Resources Development for the Period 2007–2013, Priority axis 1: promoting entrepreneurship and adaptability, Main type of activity 1.1.: experts and researchers for competitive enterprises.”

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Authors and Affiliations

  1. Institute for Environmental Protection and Sensors, Beloruska 7, 2000, Maribor, Slovenia

    Branka Viltužnik, Aljoša Košak & Aleksandra Lobnik

  2. Faculty of Mechanical Engineering, Centre for Sensor Technology, University of Maribor, Smetanova 17, SI-2000, Maribor, Slovenia

    Aljoša Košak & Aleksandra Lobnik

  3. Chuiko Institute of Surface Chemistry of NAS of Ukraine, 17 General Naumov Str, 03164, Kyiv, Ukraine

    Yuriy L. Zub

Authors
  1. Branka Viltužnik
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  2. Aljoša Košak
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  3. Yuriy L. Zub
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  4. Aleksandra Lobnik
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Correspondence to Aleksandra Lobnik.

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Viltužnik, B., Košak, A., Zub, Y.L. et al. Removal of Pb(II) ions from aqueous systems using thiol-functionalized cobalt-ferrite magnetic nanoparticles. J Sol-Gel Sci Technol 68, 365–373 (2013). https://doi.org/10.1007/s10971-013-3072-z

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  • DOI: https://doi.org/10.1007/s10971-013-3072-z

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