Batch Adsorption, Thermodynamic, and Isotherm Studies of Lead Adsorption on Natural Adsorbent Synthesized from Thespesia рopulnea Bark

Thespesia рopulnea bark activated carbon (TPC) was used as a natural adsorbent to remove Pb(II) ions from an aqueous solution. Research work has been carried out to identify the impact of pH, contact time, temperature, Langmuir as well as Freundlich adsorption isotherms of the Pb(II) ions using acti...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2021, Vol.95 (Suppl 2), p.S359-S364
Main Authors: Prabakaran, R., Arivoli, S., Arasakumar, A., Marimuthu, V.
Format: Article
Language:English
Subjects:
Activated carbon
Adsorbents
Adsorption
Aqueous solutions
Bark
Chemistry
Chemistry and Materials Science
Industrial effluents
Isotherms
Lead
Physical Chemistry
Physical Chemistry of Surface Phenomena
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Summary:Thespesia рopulnea bark activated carbon (TPC) was used as a natural adsorbent to remove Pb(II) ions from an aqueous solution. Research work has been carried out to identify the impact of pH, contact time, temperature, Langmuir as well as Freundlich adsorption isotherms of the Pb(II) ions using activated carbon with the help of batch adsorption experiments. Thermodynamic quantities, namely Δ H , Δ S , and Δ G were computed from the equilibrium constant values. The obtained Δ H ° values most probably correspond to the model most probably correspond to the model of physical adsorption. This investigation clearly shows that TPC adsorbent is very much suitable for the adsorption of Pb(II) ions, and can be used as a low cost effective adsorbent in the industrial effluent treatment.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024421150206