Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 19, Issue 4, Pages 1099-1105Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2012.11.030
Keywords
Adsorption; Kinetic; Isotherm; Malachite green; Thermodynamics
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A low cost activated carbon was synthesized from coconut coir and was applied for the removal of malachite green (MG) from its aqueous solutions. Characterization of the adsorbent was carried out and BET surface area of the adsorbent was found to be 205.27 m(2)/g. The process of removal of MG was better governed by second order kinetics with a rate constant of 0.21 g mg(-1) min(-1) at 323 K. The coefficient of mass transfer was found to be 3.70 x 10(-5) cm s(-1). The value of Delta G degrees was found to be negative indicating feasibility and spontaneity of the adsorption process. (c) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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