Focused Ion Beam Analysis of Banana Peel and Its Application for Arsenate Ion Removal

Jamil R. Memon; G. Zuhra Memon; Peter. J. Heard; Keith. R. Hallam

doi:10.21743/

Authors

Jamil R. Memon Dr. M. A. Kazi, Institute of Chemistry, University of Sindh, Jamshoro, Pakistan Author
G. Zuhra Memon Dr. M. A. Kazi, Institute of Chemistry, University of Sindh, Jamshoro, Pakistan Author
Peter. J. Heard Interface Analysis Centre, University of Bristol, Bristol BS8 1TL, UK Author
Keith. R. Hallam Interface Analysis Centre, University of Bristol, Bristol BS8 1TL, UK Author

DOI:

https://doi.org/10.21743/

Keywords:

Banana peel; Arsenate ions; Sorption; Kinetics; Adsorption isotherms

Abstract

Banana peel, a common fruit waste, has been investigated for its ability to remove arsenate ions from ground water as a function of pH, contact time, and initial metal ion concentration. Focused ion beam (FIB) analysis revealed the internal morphology of the banana peels. Arsenate ions were entered into micropores of banana peel. pH was seen to have no effect on the sorption process. Retained species were eluted using 5 mL of 2 M H₂SO₄. The kinetics of sorption were observed to follow the pseudo first order rate equation. The sorption data followed Freundlich and D-R isotherms. The energy value obtained from the D-R isotherms indicated that the sorption was physical in nature for arsenate species. Our study has shown that banana peel has the ability to remove arsenate species from ground water samples.