Banana Peel: A Green and Economical Sorbent for Cr(III) Removal

  • Saima Q. Memon Hi Tech Central Resource Laboratories, University of Sindh, Jamshoro, Pakistan.
  • Jamil R. Memon National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
  • Muhammad I. Bhanger National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
  • Muhammad Y. Khuhawar Hi Tech Central Resource Laboratories, University of Sindh, Jamshoro, Pakistan.

Abstract

Banana peel, a common fruit waste has been investigated to remove and preconcentrate Cr(III) from industrial wastewater. It was characterized by FT-IR spectroscopy. The parameters pH, contact time, initial metal ion concentration and temperature were investigated and the maximum sorption was found to be 95%. The binding of metal ions was found to be pH dependent with the optimal sorption occurring at pH 4. The retained species were eluted using 5mL of 2 M HNO3. The mechanism for the binding of Cr(III) on the banana peel surface was also studied in detail. The Langmuir and Dubinin-Radushkevich (D-R) isotherms were used to describe the partitioning behavior for the system at different temperatures. Kinetic and thermodynamic measurements of the banana peel for chromium ions were also studied. The method was applied for the removal and preconcentration of Cr(III) from industrial wastewater.

Published
Jun 2, 2008
How to Cite
MEMON, Saima Q. et al. Banana Peel: A Green and Economical Sorbent for Cr(III) Removal. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 9, n. 1, p. 6, june 2008. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/136>. Date accessed: 23 nov. 2017.