Kinetics and thermodynamics of Cd (II) biosorption onto loquat (Eriobotrya japonica) leaves
Joint Authors
Awwad, Aql M.
Salim, Nida Muhammad Ismail
Source
Journal of Saudi Chemical Society
Issue
Vol. 18, Issue 5 (31 Dec. 2014), pp.486-493, 8 p.
Publisher
Publication Date
2014-12-31
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Topics
Abstract EN
A new biosorbent loquat (Eriobotrya japonica) leaves waste for removing cadmium (II) ions from aqueous solutions has been investigated.
The extent of biosorption of Cd (II) ions was found to be dependent on solution pH, initial cadmium ion concentrations, biosorbent dose, contact time, and temperature.
The experimental equilibrium biosorption data were analyzed by four widely used two-parameters Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich isotherm equations.
Langmuir and Temkin isotherm models provided a better fit with the experimental data than Freundlich and Dubinin–Radushkevich isotherm models by high correlation coefficients R2.
The thermodynamic analysis indicated that the biosorption behavior of cadmium ions onto loquat leaves (LL) biosorbent was an endothermic process, resulting in higher biosorption capacities at higher temperatures.
The negative sign values of DG0 and positive values of DH0 revealed that the biosorption process was spontaneous and endothermic.
Kinetic studies showed that pseudo-second order described the biosorption experimental data better than the pseudo-first order kinetic model.
The (LL) were successfully used for the biosorption of cadmium ions from contaminated water sources.
American Psychological Association (APA)
Awwad, Aql M.& Salim, Nida Muhammad Ismail. 2014. Kinetics and thermodynamics of Cd (II) biosorption onto loquat (Eriobotrya japonica) leaves. Journal of Saudi Chemical Society،Vol. 18, no. 5, pp.486-493.
https://search.emarefa.net/detail/BIM-412752
Modern Language Association (MLA)
Awwad, Aql M.& Salim, Nida Muhammad Ismail. Kinetics and thermodynamics of Cd (II) biosorption onto loquat (Eriobotrya japonica) leaves. Journal of Saudi Chemical Society Vol. 18, no. 5 (2014), pp.486-493.
https://search.emarefa.net/detail/BIM-412752
American Medical Association (AMA)
Awwad, Aql M.& Salim, Nida Muhammad Ismail. Kinetics and thermodynamics of Cd (II) biosorption onto loquat (Eriobotrya japonica) leaves. Journal of Saudi Chemical Society. 2014. Vol. 18, no. 5, pp.486-493.
https://search.emarefa.net/detail/BIM-412752
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 492-493
Record ID
BIM-412752