Multifunctional Group Biomass in Biosorption of Cu2+ from Aqueous Solution: Kinetics and Isotherm Studies

  • A. A. Inyinbor Department of Physical Sciences, Landmark University, P.M.B 1001, Omu Aran, Nigeria
  • F. A. Adekola
  • G. A. Olatunji

Abstract

 A novel, fibrous and multifunctional group surface bioadsorbent was prepared from the waste of Irvingia gabonensis (Dika nut-DN) seed. The bioadsorbent potential in cheap environmental remediation was tested using aqueous copper solution as adsorbate. Percentage Cu2+ removal was as high as 70 %. Sorption data were tested with various isotherms and kinetics models. Monolayer sorption dominates the uptake of Cu2+ onto DN with maximum monolayer sorption capacity of 227.27 mg/g. Some level of multilayer sorption also occurred within the Cu2+-DN system thus a greater than 0.9 correlation coefficient recorded for the Freundlich sorption isotherm. Possible Cu2+ uptake mechanism onto DN was proposed. Pseudo second order kinetics best described the bioadsorption data while desorption results showed that Cu2+ was stable on DN surface.

Published
Dec 14, 2017
How to Cite
INYINBOR, A. A.; ADEKOLA, F. A.; OLATUNJI, G. A.. Multifunctional Group Biomass in Biosorption of Cu2+ from Aqueous Solution: Kinetics and Isotherm Studies. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 18, n. 2, p. 94 – 104, dec. 2017. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/320>. Date accessed: 22 june 2018. doi: http://dx.doi.org/10.21743/pjaec/2017.12.09.