Journal of
Chemical Engineering and Materials Science

  • Abbreviation: J. Chem. Eng. Mater. Sci.
  • Language: English
  • ISSN: 2141-6605
  • DOI: 10.5897/JCEMS
  • Start Year: 2010
  • Published Articles: 97

Full Length Research Paper

Biosorption of copper(II) and lead(II) ions from aqueous solutions by modified loquat (Eriobotrya japonica) leaves (MLL)

  Akl M. Awwad1* and Nidà M. Salem2        
  1Royal Scientific Society, P. O. Box 1438 Al-Jubaiha 11941 Amman, Jordan. 2Faculty of Agriculture, Jordan University, Amman, Jordan
Email: [email protected];[email protected]

  •  Accepted: 31 January 2012
  •  Published: 29 February 2012

Abstract

 

A modified loquat leaves (MLL) for the removal of copper(II) and lead(II) ions from aqueous solutions has been investigated. The biosorption of copper(II) and lead(II) ions was found to be dependent on solution pH, initial metal ion concentrations, biosorbent dose, contact time, and temperature. The experimental equilibrium biosorption data were analyzed by three widely used two-parameters; Langmuir, Freundlich, and Temkin isotherm models. Langmuir isotherm model provided a better fit with the experimental data than other models by high correlation coefficients R2. Kinetic studies showed that pseudo-second order described the biosorption experimental data better than the pseudo-first order kinetic model.

 

Key words: Biosorption, loquat leaves, copper, lead, adsorption isotherms, kinetic.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

Back to Vol. 3 No. 1
Back to articles
  • Articles on Google by:
SUBSCRIBE TO RSS
SUBMIT MANUSCRIPT
CONFERENCES