Isotherm and kinetics of As(III) uptake from aqueous solution by Cinnamomum zeylanicum

Al-Mamun, M., Poostforush, M., Mukul, S. A. and Subhan, M. A. (2013) Isotherm and kinetics of As(III) uptake from aqueous solution by Cinnamomum zeylanicum. Research Journal of Chemical Sciences, 3 3: 34-41.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
Author Al-Mamun, M.
Poostforush, M.
Mukul, S. A.
Subhan, M. A.
Title Isotherm and kinetics of As(III) uptake from aqueous solution by Cinnamomum zeylanicum
Formatted title
Isotherm and kinetics of As(III) uptake from aqueous solution by Cinnamomum zeylanicum
Journal name Research Journal of Chemical Sciences
ISSN 2250-9261: 2231-606X
Publication date 2013-03
Sub-type Article (original research)
Volume 3
Issue 3
Start page 34
End page 41
Total pages 8
Place of publication Indore, Madhya Pradesh, India
Publisher International Science Congress Association
Collection year 2014
Language eng
Abstract Cinnamon-bark (Cinnamomum zeylanicum) powder (CP) was investigated to evaluate the As(III) biosorption capability from aqueous solution. Biosorption behavior of As(III) was studied by batch column experiments. The adsorption phenomenon were analyzed with various experimental variables such as solution pH, sorbent amount, agitation speed, initial As(III) concentration and temperature. Maximum sorption was occurred at pH 5.0 while the equilibrium was established in 8 h. Langmuir and Freundlich isotherm models were employed for fitting the experimental data. The maximum sorption capacity of CP was observed to be 36.311 μg g-1. The biosorption kinetics was speculated to follow pseudo-first-order kinetic model (R2 =0.998) with the sorption rate of 15.340×10-3 min-1 for the initial As(III) concentration of 500 μg L-1. The biosorbent material was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The activation energy (Ea) and heat of biosorption (H) were calculated to be 17.780 and 30.724 kJ mol-1 respectively. Thermodynamic parameters were evaluated which revealed the spontaneous nature of biosorption on CP accompanied with the physical activated process. The break through characteristics of C. zeylanicum packed column was also investigated by small scale column tests (SSCT).
Keyword Cinnamomum zeylanicum
Arsenic
Biosorption
FTIR
Freundlich isotherm
SEM
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2014 Collection
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Wed, 20 Mar 2013, 13:31:21 EST by Sharif Ahmed Mukul on behalf of School of Agriculture and Food Sciences