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Removal of copper(II) ions by a biosorbent--Cinnamomum camphora leaves powder.
J Hazard Mater. 2010 May 15; 177(1-3):228-36.JH

Abstract

In the present study, Cinnamomum camphora leaves powder (CLP) was investigated as a biosorbent for the removal of copper ions from aqueous solutions. The biosorbents before and after adsorption were measured by EDS and FT-IR. Kinetic data and sorption equilibrium isotherms were carried out in batch process. The adsorption kinetic experiments revealed that there are three stages in the whole adsorption process. It was found that Cu(II) adsorption onto CLP for different initial Cu(II) concentrations all followed pseudo-second order kinetics and were mainly controlled by the film diffusion mechanism. Batch equilibrium results at different temperatures suggest that Cu(II) adsorption onto CLP can be described perfectly with Langmuir isotherm model compared to Freundlich and D-R isotherm models, and the characteristic parameters for each adsorption isotherm were also determined. Thermodynamic parameters calculated show that the adsorption process has been found to be endothermic in nature. The analysis for the values of the mean free energies of adsorption (E(a)), the Gibbs free energy (DeltaG(0)) and the effect of ionic strength all demonstrate that the whole adsorption process is mainly dominated by ion-exchange mechanism, accompanied by a certain amount of surface complexation which has been verified by variations in EDS and FT-IR spectra and pH value before and after adsorption. Regeneration studies show CLP possesses an excellent reusability.

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Authors+Show Affiliations

Chen H
School of Pharmaceutical and Chemical Engineering, Taizhou University, Dongfang Road No 605, Linhai 317000, Zhejiang, PR China. chenhao2212@sohu.com
Dai G
No affiliation info available
Zhao J
No affiliation info available
Zhong A
No affiliation info available
Wu J
No affiliation info available
Yan H
No affiliation info available

MeSH

AdsorptionCinnamomum camphoraCopperPlant LeavesThermodynamicsWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20022692

Citation

Chen, Hao, et al. "Removal of copper(II) Ions By a biosorbent--Cinnamomum Camphora Leaves Powder." Journal of Hazardous Materials, vol. 177, no. 1-3, 2010, pp. 228-36.
Chen H, Dai G, Zhao J, et al. Removal of copper(II) ions by a biosorbent--Cinnamomum camphora leaves powder. J Hazard Mater. 2010;177(1-3):228-36.
Chen, H., Dai, G., Zhao, J., Zhong, A., Wu, J., & Yan, H. (2010). Removal of copper(II) ions by a biosorbent--Cinnamomum camphora leaves powder. Journal of Hazardous Materials, 177(1-3), 228-36. https://doi.org/10.1016/j.jhazmat.2009.12.022
Chen H, et al. Removal of copper(II) Ions By a biosorbent--Cinnamomum Camphora Leaves Powder. J Hazard Mater. 2010 May 15;177(1-3):228-36. PubMed PMID: 20022692.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of copper(II) ions by a biosorbent--Cinnamomum camphora leaves powder. AU - Chen,Hao, AU - Dai,Guoliang, AU - Zhao,Jie, AU - Zhong,Aiguo, AU - Wu,Junyong, AU - Yan,Hua, Y1 - 2009/12/11/ PY - 2009/08/05/received PY - 2009/11/27/revised PY - 2009/12/03/accepted PY - 2009/12/22/entrez PY - 2009/12/22/pubmed PY - 2010/6/10/medline SP - 228 EP - 36 JF - Journal of hazardous materials JO - J Hazard Mater VL - 177 IS - 1-3 N2 - In the present study, Cinnamomum camphora leaves powder (CLP) was investigated as a biosorbent for the removal of copper ions from aqueous solutions. The biosorbents before and after adsorption were measured by EDS and FT-IR. Kinetic data and sorption equilibrium isotherms were carried out in batch process. The adsorption kinetic experiments revealed that there are three stages in the whole adsorption process. It was found that Cu(II) adsorption onto CLP for different initial Cu(II) concentrations all followed pseudo-second order kinetics and were mainly controlled by the film diffusion mechanism. Batch equilibrium results at different temperatures suggest that Cu(II) adsorption onto CLP can be described perfectly with Langmuir isotherm model compared to Freundlich and D-R isotherm models, and the characteristic parameters for each adsorption isotherm were also determined. Thermodynamic parameters calculated show that the adsorption process has been found to be endothermic in nature. The analysis for the values of the mean free energies of adsorption (E(a)), the Gibbs free energy (DeltaG(0)) and the effect of ionic strength all demonstrate that the whole adsorption process is mainly dominated by ion-exchange mechanism, accompanied by a certain amount of surface complexation which has been verified by variations in EDS and FT-IR spectra and pH value before and after adsorption. Regeneration studies show CLP possesses an excellent reusability. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/20022692/Removal_of_copper_II__ions_by_a_biosorbent__Cinnamomum_camphora_leaves_powder_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)01993-1 DB - PRIME DP - Unbound Medicine ER -