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Vol. 25 No. 3 (2013): Vol 25 Issue 3

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Orthophosphoric Acid Activated Ananas comosus Leaves Carbon as an Adsorbent for the Removal of Basic Yellow 2

https://doi.org/10.14233/ajchem.2013.12975
R. Parimalam
Department of Chemistry, Sri Meenakshi Government College for Women, Madurai-625 002, India
V. Raj
Department of Chemistry, Periyar University, Salem-636 011, India
P. Sivakumar
Department of Chemistry, Arignar Anna Government Arts College, Namakkal-637 002, India

Corresponding Author(s) : R. Parimalam

pari_ramachandran@yahoo.co.in

Asian Journal of Chemistry, Vol. 25 No. 3 (2013): Vol 25 Issue 3

Abstract

Removal of basic yellow 2 from aqueous solution by adsorbing it on an activated carbon prepared from Ananas comosus (L) leaves was investigated by batch method. The studies were conducted by varying the pH, initial dye concentration, contact time and temperature. The sorption data was analyzed using the Langmuir, Freundlich, Tempkin isotherm and Dubinin-Radushkevich (D-R) isotherm models. The maximum monolayer adsorption capacity was found to be 227.27 mg/g. The Freundlich model is more appropriate to explain the adsorption phenomena with good fit. The data were also analyzed in terms of their kinetic behaviour and was found to obey the pseudo second order equation with an r2 value of 0.999.

Keywords

Adsorption Activated carbon Basic yellow-2 dye Kinetics Equilibrium
Parimalam, R., Raj, V., & Sivakumar, P. (2012). Orthophosphoric Acid Activated Ananas comosus Leaves Carbon as an Adsorbent for the Removal of Basic Yellow 2. Asian Journal of Chemistry, 25(3), 1331–1338. https://doi.org/10.14233/ajchem.2013.12975
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