Abstract
The sawdust of Calabrian pine was used as sorbent for the removal of Cu(II) ions from aqueous solution of copper sulfate pentahydrate (CuSO4.5H2O) at different concentrations, pHs and temperatures. The results showed that about 65–81% of Cu(II) ions in the solution could be adsorbed on the sawdust. The percentage of adsorped Cu(II) ions onto the sawdust increased with increasing initial concentration. Kinetic studies indicated that the sorption process followed the first order reversible kinetic model. It was also determined that the sorption process obeyed the Freundlich isotherm. Furthermore, the sorption thermodynamic was investigated in detail.
Zusammenfassung
Kiefernsägemehl wurde als Adsorbens benutzt, um CI(II)-Ionen aus wässriger Lösung von Kupfersulfat bei unterschiedlichen Konzentrationen, pH-Werten und Temperaturen zu entfernen. Etwa 65–81% der Kupferionen konnten aus der Lösung an Sägemehl adsorbiert werden. Der adsorbierte Anteil stieg mit erhöhter Anfangskonzentration. Kinetische Untersuchungen zeigten, dass die Sorption einer Reaktion erster Ordnung folgt und entsprechend der Freundlich-Isotherme verläuft. Auch die thermodynamischen Parameter der Reaktion wurden untersucht.
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Acemioğlu, B., Alma, M.H. Sorption of copper (II) ions by pine sawdust. Holz Roh Werkst 62, 268–272 (2004). https://doi.org/10.1007/s00107-004-0480-3
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DOI: https://doi.org/10.1007/s00107-004-0480-3