ADSORPTION CHARACTERISTICS OF ZIZYPHUS JUJUBA SEED SHELL ACTIVATED NANO POROUS CARBON FOR REMOVING COPPER (II) IONS FROM WASTEWATER

K Veeravelan; S Arivoli; V Marimuthu

doi:10.29121/granthaalayah.v4.i12.2016.2412

Authors

K Veeravelan PG and Research Department of Chemistry, Thiru Vi Ka Government Arts College, Thiruvarur, Tamilnadu, India
S Arivoli PG and Research Department of Chemistry, Thiru Vi Ka Government Arts College, Thiruvarur, Tamilnadu, India
V Marimuthu PG and Research Department of Chemistry, Thiru Vi Ka Government Arts College, Thiruvarur, Tamilnadu, India

DOI:

https://doi.org/10.29121/granthaalayah.v4.i12.2016.2412

Keywords:

Copper, Activated Zizyphus Jujuba Shell Nano Carbon, Isotherms and Kinetics Models

Abstract [English]

In the present study, adsorption of copper (II) ions from aqueous solution by Activated Zizyphus Jujuba shell Nano Carbon was investigated under batch mode. The influence of solution pH, sorbent dose, copper concentration, contact time and temperature was studied. The copper adsorption was favored with maximum adsorption at pH 6.5. Sorption equilibrium time was observed in 60 min. The equilibrium adsorption data were correlated with Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Hurkins-Jura, Halsay, Radlich-Peterson, Jovanovic and BET isotherm models. The kinetics of the adsorption process was tested by pseudo-first-order, pseudo-second order, Elovich and Intra-particle diffusion models. It was shown that adsorption of copper could be described by the pseudo-second order kinetic model. Thermodynamic parameters such as Gibbs free energy (ΔG⁰), the enthalpy (ΔH⁰) and the entropy change of sorption (ΔS⁰) have also been evaluated and it has been found that the adsorption process was spontaneous, feasible and endothermic in nature. The results indicated that Activated Zizyphus Jujuba shell Nano Carbon can be used as an effective and low-cost adsorbent to remove copper (II) from aqueous solution.

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