Removal of lead(II) by adsorption onto Viscum album L.: Effect of temperature and equilibrium isotherm analyses

Erentürk, Saliha; Malkoc, Emine

doi:10.1016/j.apsusc.2006.10.042

Makale Tam Makale Uluslararası 2007

Removal of lead(II) by adsorption onto Viscum album L.: Effect of temperature and equilibrium isotherm analyses

Saliha Erentürk, Emine Malkoc

APPLIED SURFACE SCIENCE Cilt 253 · Sayı 10 · ss. 4727–4733 · 15.03.2007

DOI ile aç

Özet

The removal efficiency of Viscum album L. from lead containing aqueous solutions was investigated. The effect of adsorbent mass, pH of solution, initial Pb(II) concentration and temperature was investigated using a batch adsorption technique. The optimum pH for Pb(II) adsorption was found as 3.0 for Viscum album L. Results were analyzed by the Langmuir, Freundlich, Temkin and Harkins-Jura, equation using linearized correlation coefficient at different temperature. The characteristic parameters for each isotherm have been determined. The Langmuir model agrees very well with experimental data than the other models. According to Langmuir isoterm, the monolayer saturation capacity (Q(o)) is 769.23 mg/g at 25 degrees C. Models and the isotherm constant were evaluated depending on temperature. Thermodynamic parameters such as Delta H degrees, Delta S degrees and Delta G degrees were calculated. The adsorption process was found to be endothermic and spontaneous. The experimental data were analyzed using the first- and the second-order kinetic models. The rate constants of adsorption for both kinetics models have been calculated. The second-order model provides the best correlation of the data. (c) 2006 Elsevier B.V. All rights reserved.

Anahtar kelimeler

Waste adsorption LEAD Biosorption metal ions Adsorption isotherms AQUEOUS-SOLUTIONS THERMODYNAMICS CHROMIUM(VI) CD(II) CONE BIOMASS Pb (II) fixed bed Viscum album L. COPPER(II) IONS

Atıf için künye

Erentürk, S., & Malkoc, E. (2007). Removal of lead(II) by adsorption onto Viscum album L.: Effect of temperature and equilibrium isotherm analyses. APPLIED SURFACE SCIENCE, 253(10), 4727–4733. https://doi.org/10.1016/j.apsusc.2006.10.042

BibTeX

@article{erenturk2007-189061,
  author = {Erentürk, Saliha and Malkoc, Emine},
  title = {Removal of lead(II) by adsorption onto Viscum album L.: Effect of temperature and equilibrium isotherm analyses},
  journal = {APPLIED SURFACE SCIENCE},
  year = {2007},
  volume = {253},
  number = {10},
  pages = {4727--4733},
  issn = {0169-4332},
  doi = {10.1016/j.apsusc.2006.10.042},
  url = {https://akademik.atauni.edu.tr/yayinlar/189061-removal-of-leadii-by-adsorption-onto-viscum-album-l-effect-of-temperature-and}
}