An investigation of Cu2+ adsorption by bentonite and acid-activated bentonite: Effects of clay amount, initial concentration and adsorption isotherm
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Abstract
Native bentonite minerals were treated with 4M H2SO4 and were used as adsorbents of Cu2+ion in water. The effects of adsorbent amount, initial concentration and temperature on the Cu2+ion adsorption were investiagted. The adsorption capacities of bentonite and acid-activated bentonite were respectively 34.36 mg/g and 39.21 mg/g. The negative value of ΔG and the positive of ΔS showed that the Cu2+ion adsorption onto bentonite and acid-activated bentonite was thermally evaporated and self-made.
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Keywords
bentonite, activated bentonite, Cu2 ion, concentration, adsorption isotherm.
References
[2]. R. Apiratikul, P. Pavasant (2008), “Sorption of Cu2+, Cd2+, and Pb2+ using modified zeolite from coal fly ash, Chemical Engineering Journal, (144), p. 245–258.
[3]. ATSDR (2004), “Draft toxicological profile for copper, Agency for Toxic Substances and Disease Registry”, U.S. Department of Health and Human Services, Atlanta, Georgia, website:http://www.atsdr.cdc.gov.
[4]. B. Bayat (2002), “Comparative study of adsorption properties of Turkish fly ashes: I. The case of nickel(II), copper(II) and zinc(II)”, Journal of Hazardous Materials, (B95), p. 251–273.
[5]. K. G. Bhattacharyya, S. S. Gupta (2008), “Influence of acid activation on adsorption of Ni(II) and Cu(II) on kaolinite and montmorillonite: Kinetic and thermodynamic study”, Chemical Engineering Journal, (136), p. 1–13.
[6]. K. G. Bhattacharyya, S. S. Gupta (2011), “Removal of Cu(II) by natural and acid-activated clays: An insight of adsorption isotherm, kinetic and thermodynamics”, Desalination, (272), p. 66–75.
[7]. E. Eren, B. Afsin (2008), “An investigation of Cu(II) adsorption by raw and acid-activated bentonite: A combined potentiometric, thermodynamic, XRD, IR, DTA study”, Journal of Hazardous Materials, (151), p. 682–691.
[8]. H. Koyuncu, A. R. Kul (2014), “An investigation of Cu(II) adsorption by native and activated bentonite: Kinetic, equilibrium and thermodynamic study”, Journal of Environmental Chemical Engineering, (2), p. 1722–1730.
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