Article Abstract

Volume 22, No. (2), 2012 (June)
BIOSORPTION OF HEXAVALENT CHROMIUM BY Spirogyra spp.: EQUILIBRIUM, KINETICS AND THERMODYNAMICS
A. Yaqub, M. S. Mughal , A. Adnan , W. A. Khan, K. M. Anjum

A. Yaqub, M. S. Mughal, A. Adnan, W. A. Khan, K. M. Anjum
1 Department of Zoology, Government College University, Lahore, Pakistan
2 *Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
3 **Department of Chemistry, Government College University, Lahore, Pakistan
4 Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan

Corresponding Author: atifravian@gmail.com
DOI: NA
Page Number(s): 408-415
Published Online First: April 01, 2012
Publication Date: April 01, 2012
ABSTRACT

Uptake of hexavalent chromium (Cr VI) using dead biomass of green algae, Spirogyra spp. to evaluate biosorption capacity with special emphasis on its mechanistic aspect was studied. Optimum biosorption of Cr (VI) was observed at pH 4.0 (265mg/g), biomass concentration of 1mg/g, and temperature 303K.Various adsorption isotherms were employed to analyze the experimental data of which Langmuir isotherm was found most suitable, showing monolayer adsorption. Pseudo-second order model was found suitable for the kinetic interpretation of the data. Various thermodynamic parameters were calculated and the biosorption was found to be spontaneous, endothermic and feasible under the given conditions. Analysis of FTIR spectra indicated the presence and role of electronegative functional groups on algal surface responsible for binding of Cr (VI) ions.

Keywords: Biosorption, Green algae, Heavy metals, Kinetic, Thermodynamic, FTIR
Indicators
Metrics

Cite Score: 1.3

JCR Year: 2025

Indexing
Status

Web of Science (SCIE)

SCOPUS (Q3)

Journal Metrics
Current

Journal Impact Factor: 0.5

HEC Category: W

ISSN Details
Verified

Print ISSN: 1018-7081

Electronic ISSN: 2309-8694

Search the Journal

Use the fields below to search for articles by Title, Author, or Keywords.