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Vol. 26 No. 18 (2014): Vol 26 Issue 18

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Investigation of Electrokinetic Properties of Natural Vine Stem Dispersions as Biosorbent

https://doi.org/10.14233/ajchem.2014.16471
Ebru Mavioglu Ayan
Department of Chemistry, Science Faculty, Ege University, 35100 Izmir, Turkey
Esra Evrim Yalcinkaya
Department of Chemistry, Science Faculty, Ege University, 35100 Izmir, Turkey
Asli Toptas
Department of Chemistry, Science Faculty, Ege University, 35100 Izmir, Turkey

Corresponding Author(s) : Esra Evrim Yalcinkaya

esra.evrim.saka@ege.edu.tr

Asian Journal of Chemistry, Vol. 26 No. 18 (2014): Vol 26 Issue 18

Abstract

Vine stem is used as a low cost adsorbent for the removal of toxic dyes from the aqueous solutions. In this study, the effects of electrolyte concentration, pH and type of ionic species on the zeta potential of the natural vine stem dispersions were investigated by microelectrophoresis method. z-Potential experiments have been performed to determine the point of zero charge (pzc) and potential determining ions (pdi). The surface charge of vine stem exhibited an increasing negativity as the pH of the solution increased. Vine stem dispersions do not have point of zero charge. A gradual decrease in the z-potential occurs with the monovalent electrolytes when concentration increased. Divalent and heavy metal electrolytes have less negative potentials due to the higher valence of ions. The z-potential values have had a positive sign at trivalent electrolytes.

Keywords

Zeta potential Natural vine stem Electrolytes
Mavioglu Ayan, E., Evrim Yalcinkaya, E., & Toptas, A. (2014). Investigation of Electrokinetic Properties of Natural Vine Stem Dispersions as Biosorbent. Asian Journal of Chemistry, 26(18), 6010–6014. https://doi.org/10.14233/ajchem.2014.16471
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