Sorption of ions Cu2+ by filtrate material AC

  • И. В. Родина Rodina Irina V.- researcher, Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
  • О. Д. Линников Linnikov Oleg D. - Head of Laboratory, PhD, Dr. Sci. (Physical Chemistry), Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, E-mail: linnikov@mail.ru
  • А. П. Тютюнник Tjutjunnik Aleksandr P. - Head of Laboratory, PhD, Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
  • Д. А. Еселевич Eselevich Daniil A. - research associate, Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
  • Л. Л. Соколова Sokolova Lena L.- researcher, Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
DOI: https://doi.org/10.17308/sorpchrom.2017.17/355
Keywords: sorption, purification of water, ions Cu2 , adsorption, the Langmuir equation.

Abstract

The sorption of ions Cu2+ by mineral filtrate material AC was investigated using imitating solution. The imitating solution contained CuSO4 and 400 mg/l Na2SO4. It was shown that sorption properties of AC are result of two factors. The first factor is an increasing of pH of solution after introduction into it AC. This leads to precipitation of Cu(OH)2 from the solution. The second one is facility of AC to remove ions Cu2+ from solution under mechanism of monomolecular adsorption described by the Langmuir equation. It was established that adsorption of ions Cu2+ onto surface of AC increases as pH of solution increases from 4 to 6.7 (the ranges of рН<4 and pH>6.7 were not investigated). The adsorption capacity of AC for ions Cu2+ in dimension of mg/l is near of analogous ones for other mineral sorbents. But in dimension of mg/m2 the adsorption capacity of AC is about in two order of value lower in compare with the adsorption capacity of other sorbents. Taking into account that base of AC is SiO2 one can conclude that silica is not effective as an adsorbent for ions Cu2+. Nevertheless, at very low concentration of Cu2+ in a solution, when there is no precipitation of Cu(OH)2, AC can remove ions Cu2+ from polluted solutions because of their adsorption on the surface of AC.

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Published
2018-02-20
How to Cite
Родина, И. В., Линников, О. Д., Тютюнник, А. П., Еселевич, Д. А., & Соколова, Л. Л. (2018). Sorption of ions Cu2+ by filtrate material AC. Sorbtsionnye I Khromatograficheskie Protsessy, 17(1), 78-86. https://doi.org/10.17308/sorpchrom.2017.17/355
Issue
Vol 17 No 1 (2017): Sorption and chromatographic processes
Section
Статьи