International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 234 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1

Research Paper | Chemistry | India | Volume 7 Issue 10, October 2018


Isotherm, Thermodynamic and Kinetic Studies on the Adsorption of Cu(II), Cd(II) and Ni(II) Ions from Aqueous Solution onto Coconut Shell Activated Carbon

Deepak Kumar Dawar | M. K. Bhatnagar [6] | Prakhar Bhatnagar [2]


Abstract: This study throws light on the use of coconut shell in the removal of heavy metal ions Cu (II), Cd (II) and Ni (II) from the aqueous solution. The adsorption parameters were determined using both Langmuir and Freundlich isotherm models. The adsorption kinetics followed the pseudo-second-order model. This model gives the best-fit to experimental data for heavy metal ions. The second order kinetics give highest correlation coefficient values 0.989, 0.993, 0.995 for Cu2+, Cd2+, Ni2+respectively. Thermodynamic parameters such as change in Gibbs free energy (G0), enthalpy change (H0), and entropy change (S0) were also evaluated. The values showed that the adsorption process for Cu (II), Cd (II) and Ni (II) ions was endothermic. The negative value of G0 suggests the spontaneity of the reaction. The final result of the study suggests that the coconut shell carbon (CNS) has a good efficiency to remove Cu (II), Cd (II) and Ni (II) ions from aqueous solution and it is a cost effective adsorbent too.


Keywords: Activated carbon, Adsorption, Isotherm, Kinetic, thermodynamic, Heavy metal ions, coconut shell


Edition: Volume 7 Issue 10, October 2018,


Pages: 12 - 17


How to Download this Article?

You Need to Register Your Email Address Before You Can Download the Article PDF


How to Cite this Article?

Deepak Kumar Dawar, M. K. Bhatnagar, Prakhar Bhatnagar, "Isotherm, Thermodynamic and Kinetic Studies on the Adsorption of Cu(II), Cd(II) and Ni(II) Ions from Aqueous Solution onto Coconut Shell Activated Carbon", International Journal of Science and Research (IJSR), Volume 7 Issue 10, October 2018, pp. 12-17, https://www.ijsr.net/get_abstract.php?paper_id=ART20191607

Similar Articles with Keyword 'Activated carbon'

Downloads: 0

Research Paper, Chemistry, India, Volume 11 Issue 2, February 2022

Pages: 1056 - 1062

Adsorptive Capacity, Adsorption Isotherm and Adsorption Kinetics of Activated Carbon for the Removal of Toxic Cadmium from Polluted Water

Dr. P. P. Vishwakarma [3]

Share this Article

Downloads: 1

Research Paper, Chemistry, India, Volume 4 Issue 2, February 2015

Pages: 2040 - 2044

Kinetics and Equilibrium Studies on the Removal of Direct Blue Dye Using Activated Carbon from Phyllanthus Reticulatus (Black Honey)

G. Kavitha [4] | V. Venkateswaran [3]

Share this Article
Top