Volume 8, Issue 4, December 2019, Page: 66-74
Adsorption of Cu2+ and Cr6+ in Aqueous Solution by a Thermally Modified Biosorbent Based on Cotton Cakes
Abia Daouda, Department of Chemistry, Faculty of Science, University of Ngaoundere, Cameroon
Yowe Kidwe, Department of Chemistry, Faculty of Science, University of Ngaoundere, Cameroon
Domga Richard, Department of Applied Chemistry, ENSAI, University of Ngaoundere, Cameroon
Domga, Department of Applied Chemistry, ENSAI, University of Ngaoundere, Cameroon
Harouna Massai, Department of Chemistry, Faculty of Science, University of Ngaoundere, Cameroon
Received: Sep. 27, 2019;       Accepted: Oct. 28, 2019;       Published: Nov. 19, 2019
DOI: 10.11648/j.ajpc.20190804.11      View  481      Downloads  119
This work focuses on the retention capacity of Cu2+ and Cr6+ ions in water by adsorption on a thermally modified biosorbent based on cotton cakes. The solutions treated are synthetic copper nitrate solutions rich in Cu2+ ions and potassium dichromate rich in Cr6+ ions in distilled water. The adsorption tests were carried out by mixing, with stirring (250 rpm), 0.02 g of the adsorbent for the solution containing the Cu2+ ions and 0.04 g for that containing the Cr6+ ions with a volume of 50 mL of these solutions. Kinetic studies have shown that the maximum adsorption is obtained after 20 minutes. In addition, the pH of the medium influences the adsorption process and the yield is improved with increasing pH. Amounts of copper and chromium adsorbed increase with increasing initial concentrations of these ions up to 40 mg/L. Similarly, adsorbed amounts increase with increasing mass of the adsorbent. On the other hand, these adsorbed quantities decrease with increasing temperature. The best adopted kinetic models are pseudo-second-order, Intraparticular and Evlovich. The adsorption isotherms conform to the Langmuir and Dubinin-Redushkovic models. The values of thermodynamic parameters such as free enthalpy (ΔH° KJ/K.mol), entropy (ΔS° KJ/K.mol) and isosteric adsorption heat (ΔG° KJ/K. mol) at temperatures of 293; 303; 313 and 323K, all negative, show that we have to do with an exothermic adsorption, physical, ordered and spontaneous. The electrostatic attraction between the Cu2+ and Cr6+ ions and the adsorbent for the pH values above the pH of the point of zero charges shows that we have to do with a chemical adsorption.
Adsorption Isotherms, Cotton Cakes, Copper (II), Chromium (VI), Thermodynamic Parameters
To cite this article
Abia Daouda, Yowe Kidwe, Domga Richard, Domga, Harouna Massai, Adsorption of Cu2+ and Cr6+ in Aqueous Solution by a Thermally Modified Biosorbent Based on Cotton Cakes, American Journal of Physical Chemistry. Vol. 8, No. 4, 2019, pp. 66-74. doi: 10.11648/j.ajpc.20190804.11
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Ruiti Manel and Ben Thayer Bechir. (2015). Elimination of iron by oxidation and adsorption processes on charcoal pine. International Journal of Innovation and Applied Studies. Vol. 10. No. 2. pp. 694-700.
Oualid Hamdaoui. Emmanuel Naffrechoux. (2005). Study of equilibria and kinetics of adsorption of copper (II) on reactive particles in a closed reactor, perfectly agitated and thermostatically controlled. Lebanese Science Journal. Vol. 6. No. 1. pp. 59-68. pp. 1-730.
Mimanne G., K. Benhabib. A. Benghalem, S. Taleb. (2014). Study of the adsorption of heavy metals (pb and cd) in aqueous solution on activated carbon and sod montmorillonite of western Algeria. J. Mater. About. Sci. 5 (4). pp. 1298-1307.
Harouna. M, C Tcheka, D Abia, D N Kobbe, B B Loura3 and J B Tchatchueng. (2015). Kinetic, thermodynamic and equilibrium studies on adsorption of alumina and zinc ions to activated carbon from hull seeds of moringa oleifera. Int. J. Engg. Res. & Sci. & Tech. Vol. 4. No. 4. pp. 2319-5991.
Bendaho Djelloul, Ainadtabet Driss, Bassou Djillali. (2014). Adsorption of Cu (II) copper in solution by raw and activated clay from the Tiut-Naama region of southwestern Algeria. Journal of Materials Science. No. 02. pp. 23-34.
Himanshu Patel and R. T. Vashi. (2010). Decomposition of Dyeing Mill Wastewater by Adsorption and Coagulation. E-Journal of Chemistry. 7 (4). pp. 1468-1476.
Arris Sihem Wife Cheriba. (2008). Experimental study of the elimination of organic and inorganic pollutants by adsorption by-products of cereals. Doctoral thesis.
Youcef L., S. Achour. (2006). Elimination of copper by chemical precipitation and adsorption processes. Mail of knowledge. No. 7. pp. 59-65.
Joseph Ketcha Mbadcam, Solomon Gabche Anagho, Julius Ndi Nsami And Adélaïde Maguie Kammegne. (2011). Kinetic and equilibrium studies of the adsorption of lead (II) ions from aqueous solution onto two Cameroon clays: Kaolinite and smectite. Journal of Environmental Chemistry and Ecotoxicology Vol. 3 (11), pp. 290-297.
Domga Richard, Constant Tcheka, Ghislain Arnaud Anchogo Mouthe, nathalie Kobbe, Jean Bosco Tchatchueng, Alifa Tchigo, And Arbam Tsafam. (2016). equilibrium adsorption of methyl orange from aqueous solution using activated carbon from gudali bones. International journal of innovation sciences and research. 7 (5). pp. 798-805.
Safa Messeaouda. (2016). Study of the capacity of retention and elimination of metallic cations by natural adsorbents. Doctoral thesis. University of Mustapha Stambouli, Mascara. pp. 1-184.
Ibrahim Tchakala, L. Moctar Bawa, G. Djaneye-Boundjou. K. S. Doni, Pnambo. (2012). Optimization of the process for the preparation of chemically active carbons (H3PO4) from shea cakes and cottonseed cakes. J. Biol. Chem. Sci. 6 (1). pp. 461-478.
Ikhlass Marzouk Trifi. (2002). Study of the elimination of chromium (VI) by adsorption on activated alumina and cross-ionic dialysis. PhD thesis, University Paris-Est Créteil ICMPE. pp. 1-175.
Domga Richard, Domga, Jean BoscoTchatchueng, Felix Nyounai, Symphorien Fadeune Gaineunbo, Fabane, Mathieu Béné, Thomas Assokeng, Arbam Tsafam, Benjamin Espoir NÔN. (2018). Bones and its Adsorption for chromium (VI) in aqueous solution. Int. J. Engg. Res. & Sci. & Tech. 1 (7). pp. 2319-5991.
Ho, Y. S. & Mckay, G. (1998). A comparison ofchemisorption kinetic models applied to pollutant removal on various sorbents. Proc. Saf. Environ. P rotec., 76, 332–340.
Aarfane, A., Salhi, A., ElKrati, M., Tahiri, S., Monkade, M., Lhadi, E. K., Bensitel, M. (2014). Kinetic and thermodynamic study of the adsorption of Red 195 and Methylene blue dyes on fly ash and bottom ash in aqueous medium. J. Mater. Environ. Sci., 5 (6), 1927-1939.
Baliti, J., Asnaoui, A., Abouarnadasse, S. (2014). L’élimination du bleu de methylene par une argile naturelle de Taza en milieu aqueux. International Journal of Innovative Researchin Advanced Engineering, 321, 2349-2163.
Domga Richard., Massai Harouna., Constant Tcheka., Jean Bosco Tchatchueng., Arbam Tsafam., Domga., Nathalie Kobbe Dama., Dangwang Dikdim. (2015). Batch Equilibrium, Kinetic and Thermodynamic Studies on the Adsorption of Methylene Blue in Aqueous Solution onto Activated Carbon Prepared from Bos Indicus Gudali Bones. chemistry journal. Vol. 1, No. 6,. 172-181.
Browse journals by subject