Sorption studies of heavy metal ions on pectin-nano-titanium dioxide composite adsorbent |
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| Authors: | Joanna Bok-Badura Krzysztof Karoń Krzysztof Mitko |
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| Affiliation: | 1. Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, Gliwice, Poland;2. Silesian University of Technology, Faculty of Chemistry, Department of Physical Chemistry and Technology of Polymers, Gliwice, Poland |
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| Abstract: | The Cu(II), Cd(II), Zn(II), and Pb(II) sorption kinetics and equilibrium on hybrid material, composed of pectin and titanium dioxide nanopowder, were examined. Parameters, such as pH and adsorbent dose, were also investigated. The experimental data were better described by the Langmuir model. The maximum adsorption capacities were 1.37, 0.68, 0.51, and 0.83 mmol/g for Cu(II), Cd(II), Zn(II), and Pb(II), respectively. The introduction of nano-TiO2 improved the kinetics of the metal ion sorption. The titanium dioxide, despite its small content (6%), contributes to the removal of the examined metal ions and eventually to the adsorption capacity of hybrid beads. |
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| Keywords: | Adsorption metal ions removal pectin titanium dioxide nanoparticles |
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