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Equilibrium and Kinetic Studies on Adsorption of Copper from Aqueous Solution by Neem (Azadirachta Indica) Bark Powder
Authors(1) :-B. Das
Adsorption of copper (II) from aqueous solution by neem bark powder (NBP) has been investigated in the present work. All the experiments were performed under batch mode technique. Copper (II) removal is maximum at the pH: 5, adsorbent dose: 0.9 g/50 ml, contact time: 90 min and initial copper (II) ion concentration: 62.5 mg/lit. The correlation coefficient values for the adsorption isotherms: Freundlich, Langmuir, Temkin and Dubinin-Radushkevich are 0.632, 0.719, 0.760 and 0.907 respectively and for kinetic models: pseudo-first order, pseudo-second order and intraparticle diffusion equations are 0.992, 0.994 and 0.991 respectively. Langmuir maximum adsorption capacity, qmax, Temkin heat of sorption, B, and the Dubinin-Radushkevich mean free energy, E, for NBP are 10.30 mg/g, 1.180 J/mol and 0.68 KJ/mol.
Neem bark powder, Dubinin-Radushkevich, Langmuir, Adsorption
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Published in : Volume 4 | Issue 2 | January-February 2018
Date of Publication : 2018-02-28
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 290-298
Manuscript Number : IJSRST184174
Publisher : Technoscience Academy
PRINT ISSN : 2395-6011
ONLINE ISSN : 2395-602X
Cite This Article :
B. Das, "Equilibrium and Kinetic Studies on Adsorption of Copper from Aqueous Solution by Neem (Azadirachta Indica
) Bark Powder", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 4, Issue 2, pp.290-298, January-February-2018
URL : http://ijsrst.com/IJSRST184174