Adsorption of Cr (VI) From Polluted Water using Activated Carbon Prepared from Vincarosea Apocynaceae
1O.Sreedevi, Research Scholar, Department of Chemistry, ANU, Guntur District, A.P, India.
2K.Ravindhranath, Professor, Department of Chemistry, Koneru Lakshmaiah Education Foundation, Guntur District, A.P, India
Manuscript received on October 18, 2019. | Revised Manuscript received on 25 October, 2019. | Manuscript published on November 10, 2019. | PP: 2884-2892 | Volume-9 Issue-1, November 2019. | Retrieval Number: A9103119119/2019©BEIESP | DOI: 10.35940/ijitee.A9103.119119
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Abstract: The performance removal of chromium (VI) from polluted water is discussed in this paper. The sorption characteristic of Nitric Acid activated carbon derived from Vincarosea Apocynaceae plants through oxidation process and was proposed for the removal of Cr (VI) from polluted solutions. The surface chemistry characteristics of the prepared adsorbent were analysis by XRD, FTIR and SEM-EDAX. The effects are determined for removal of chromium they are initial concentration, PH level and adsorbent dose. The metal ion removal was pH dependent and, to a lesser extent, ionic strength. Kinetics data were found to follow the pseudo-second order kinetic model. Activation thermodynamic parameters, such as activation enthalpy (ΔH*), activation entropy (ΔS*), activation Gibbs free energy (ΔG*) and activation energy(E), have been evaluated and the possible adsorption mechanism also was suggested.
Keywords: Vincarosea Apocynaceae Activated Carbon, Chromium (VI), Adsorption Isotherms and Kinetics.
Scope of the Article: Bio-Science and Bio-Technology