Adsorption of Cr(VI) from Aqueous Solution onto a Mesoporous Carbonaceous Material Prepared from Naturally Occurring Pongamia pinnata Seeds
Received Date: Sep 12, 2015 / Accepted Date: Oct 30, 2015 / Published Date: Nov 03, 2015
In the present study, adsorption of Cr(VI) from aqueous solution by mesoporous Pongamia pinnata Carbonaceous Material (PPCM) as an excellent adsorbent derived from natural source was investigated. PPCM was prepared using simple chemical activation method and Cr(VI) detection by spectrophotometrically. The synthesized mesoporous carbonaceous material was characterized by FT-IR, PXRD, SEM before and after adsorption. Batch mode experiments were used to analyze the effect of various parameters like effect of pH, initial Cr(VI) concentration, adsorbent dose, and contact time on the adsorption capacity of Cr (VI) on PPCM . It was found that, maximum Cr(VI) removal (99.8%) was observed at pH 1.0 with sorption capacity of 194.6 mg g-1. The adsorption isotherms of Cr(VI) onto PPCM obtained were analyzed by Langmuir and Freundlich isotherm models and sorption data was better fitted by the Freundlich isotherm model. Adsorption kinetics were performed and obeys pseudo second order kinetic model. Experimental and kinetic results reveal that PPCM is a potential adsorbent in removal of Cr(VI) from waste water.
Keywords: Adsorption; Pongamia pinnata; Mesoporous carbonaceous material; Pseudo second order kinetics; Freundlich Isotherm
Citation: Brungesh KV, Nagabhushana BM, Raveendra RS, Hari Krishna R, Prashantha PA, et al. (2015) Adsorption of Cr(VI) from Aqueous Solution onto a Mesoporous Carbonaceous Material Prepared from Naturally Occurring Pongamia pinnata Seeds. J Environ Anal Toxicol 5: 330. Doi: 10.4172/2161-0525.1000330
Copyright: © 2015 Brungesh KV, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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