Research Article | Open Access Volume 11 | Issue 1-4 | Paper 02 | doi.org/10.15228/2021.v11.i01-4.p02 |
S. Ata
Institute of Chemistry, University of the Punjab, Lahore, Pakistan
U. Bint-e-Irshad
Institute of Chemistry, University of the Punjab, Lahore, Pakistan
F.H. Wattoo
University Institute of Biochemistry and Biotechnology, Pir Mehr Ali Shah Arid Agriculture University Rawalpindi, Pakistan
M. Imran Din
Institute of Chemistry, University of the Punjab, Lahore, Pakistan
M.H.S. Wattoo
Department of Chemistry, Pakistan Institute of Engineering & Applied Sciences, Islamabad, Pakistan
M. Sultan
Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| Received 22 Feb, 2021 | Accepted 17 Jun, 2021 | Published 12 Aug, 2021 |
ABSTRACT:
Biosorption studies of chromium (VI) ions from aqueous solution were investigated for Arachis hypogaea (peanut) shell and modified peanut shells. The change of initial chromium ion concentration, contact time, pH and temperature were investigated. Different thermodynamic parameters for the adsorption of Cr (VI) were calculated using Freundlich, Langmuir and D-R models. Various kinetic models like pseudo 1st order, pseudo 2nd order and intra particle diffusion were also studied. The adsorption was followed by Langmuir isotherm model. The maximum Cr (VI) adsorption capacity qmax calculated from Langmuir adsorption isotherm was 166 mg/g. The thermodynamic factors ΔG°, ΔH° and ΔS° indicated that the adsorption process is spontaneous and exothermic. The kinetic data have indicated that the adsorption followed the pseudo second order kinetic model. This agricultural by-product, peanut shells, were successfully used as biosorbent for effective removal of Cr (VI) from aqueous solution. The adsorption data is better fitted by the Langmuir model and the adsorption capacity increases twice due to chemical treatment of peanut shells.
How to Cite this paper?
APA-7 Style
Ata, S., Bint-e-Irshad, U., Wattoo, F.H., Din, M.I., Wattoo, M.H., Sultan, M. (2021). Investigating the biosorption potentials of Arachis hypogaea shells for chromium ions from the aqueous media. Pakistan Journal of Chemistry, 11(1-4), 10-16. https://doi.org/10.15228/2021.v11.i01-4.p02
ACS Style
Ata, S.; Bint-e-Irshad, U.; Wattoo, F.H.; Din, M.I.; Wattoo, M.H.; Sultan, M. Investigating the biosorption potentials of Arachis hypogaea shells for chromium ions from the aqueous media. Pak. J. Chem. 2021, 11, 10-16. https://doi.org/10.15228/2021.v11.i01-4.p02
AMA Style
Ata S, Bint-e-Irshad U, Wattoo FH, Din MI, Wattoo MH, Sultan M. Investigating the biosorption potentials of Arachis hypogaea shells for chromium ions from the aqueous media. Pakistan Journal of Chemistry. 2021; 11(1-4): 10-16. https://doi.org/10.15228/2021.v11.i01-4.p02
Chicago/Turabian Style
Ata, S., U. Bint-e-Irshad, F. H. Wattoo, M. Imran Din, M. H.S. Wattoo, and M. Sultan. 2021. “Investigating the biosorption potentials of Arachis hypogaea shells for chromium ions from the aqueous media” Pakistan Journal of Chemistry 11, no. 1-4: 10-16. https://doi.org/10.15228/2021.v11.i01-4.p02
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