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Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study

Authorized Users Only
2011
Authors
Milosavljevic, Nedeljko B.
Ristic, Mirjana D.
Peric-Grujic, Aleksandra A.
Filipovic, Jovanka M.
Štrbac, Svetlana
Rakočević, Zlatko Lj.
Kalagasidis Krušić, Melina
Article (Published version)
Metadata
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Abstract
A removal of Cu2+ ions from aqueous solutions onto hydrogels of chitosan. itaconic and methacrylic acid has been investigated using batch adsorption technique. The extent of adsorption was investigated as a function of pH, adsorbent dose, initial metal ion concentration, contact time and temperature. The FIR spectra showed that -NH2, -OH and -COOH groups are involved in the Cu2+ ions adsorption. The surface topography changes were observed by AFM, where the phase images indicated that sorption takes place on the surface of the hydrogel and in the bulk. Pseudo-first order, pseudo-second order and intraparticle diffusion models were analyzed and showed that the Cu2+ ions adsorption followed pseudo-second order kinetics. The equilibrium data were analyzed using Langmuir, Freundlich and Redlich-Peterson isotherms and the best interpretation was given by Redlich-Peterson. The adsorption capacity was found to be 122.59 mg/g, based on the non-linear Langmuir isotherm. Based on the separation ...factor. R-L, the Cu2+ ion adsorption is favorable, while the low activation energies indicate physisorption. Desorption experiments, done with a nitric acid, showed that the investigated hydrogels could be reused without significant losses of the initial properties even after three adsorption-sorption cycles.

Keywords:
Hydrogel / Cu2+ adsorption / AFM / Adsorption isotherm / Kinetic model / Desorption
Source:
Colloids and Surfaces A-Physicochemical and Engineering Aspects, 2011, 388, 1-3, 59-69
Publisher:
  • Elsevier
Funding / projects:
  • Synthesis and characterization of novel functional polymers and polymeric nanocomposites (RS-172062)
  • Development and Application of Methods and Materials for Monitoring New Organic Contaminants, Toxic Compounds and Heavy Metals (RS-172007)

DOI: 10.1016/j.colsurfa.2011.08.011

ISSN: 0927-7757

WoS: 000296222700008

Scopus: 2-s2.0-80052941188
[ Google Scholar ]
78
68
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/800
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Milosavljevic, Nedeljko B.
AU  - Ristic, Mirjana D.
AU  - Peric-Grujic, Aleksandra A.
AU  - Filipovic, Jovanka M.
AU  - Štrbac, Svetlana
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis Krušić, Melina
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/800
AB  - A removal of Cu2+ ions from aqueous solutions onto hydrogels of chitosan. itaconic and methacrylic acid has been investigated using batch adsorption technique. The extent of adsorption was investigated as a function of pH, adsorbent dose, initial metal ion concentration, contact time and temperature. The FIR spectra showed that -NH2, -OH and -COOH groups are involved in the Cu2+ ions adsorption. The surface topography changes were observed by AFM, where the phase images indicated that sorption takes place on the surface of the hydrogel and in the bulk. Pseudo-first order, pseudo-second order and intraparticle diffusion models were analyzed and showed that the Cu2+ ions adsorption followed pseudo-second order kinetics. The equilibrium data were analyzed using Langmuir, Freundlich and Redlich-Peterson isotherms and the best interpretation was given by Redlich-Peterson. The adsorption capacity was found to be 122.59 mg/g, based on the non-linear Langmuir isotherm. Based on the separation factor. R-L, the Cu2+ ion adsorption is favorable, while the low activation energies indicate physisorption. Desorption experiments, done with a nitric acid, showed that the investigated hydrogels could be reused without significant losses of the initial properties even after three adsorption-sorption cycles.
PB  - Elsevier
T2  - Colloids and Surfaces A-Physicochemical and Engineering Aspects
T1  - Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study
VL  - 388
IS  - 1-3
SP  - 59
EP  - 69
DO  - 10.1016/j.colsurfa.2011.08.011
UR  - Conv_2679
ER  - 
@article{
author = "Milosavljevic, Nedeljko B. and Ristic, Mirjana D. and Peric-Grujic, Aleksandra A. and Filipovic, Jovanka M. and Štrbac, Svetlana and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina",
year = "2011",
abstract = "A removal of Cu2+ ions from aqueous solutions onto hydrogels of chitosan. itaconic and methacrylic acid has been investigated using batch adsorption technique. The extent of adsorption was investigated as a function of pH, adsorbent dose, initial metal ion concentration, contact time and temperature. The FIR spectra showed that -NH2, -OH and -COOH groups are involved in the Cu2+ ions adsorption. The surface topography changes were observed by AFM, where the phase images indicated that sorption takes place on the surface of the hydrogel and in the bulk. Pseudo-first order, pseudo-second order and intraparticle diffusion models were analyzed and showed that the Cu2+ ions adsorption followed pseudo-second order kinetics. The equilibrium data were analyzed using Langmuir, Freundlich and Redlich-Peterson isotherms and the best interpretation was given by Redlich-Peterson. The adsorption capacity was found to be 122.59 mg/g, based on the non-linear Langmuir isotherm. Based on the separation factor. R-L, the Cu2+ ion adsorption is favorable, while the low activation energies indicate physisorption. Desorption experiments, done with a nitric acid, showed that the investigated hydrogels could be reused without significant losses of the initial properties even after three adsorption-sorption cycles.",
publisher = "Elsevier",
journal = "Colloids and Surfaces A-Physicochemical and Engineering Aspects",
title = "Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study",
volume = "388",
number = "1-3",
pages = "59-69",
doi = "10.1016/j.colsurfa.2011.08.011",
url = "Conv_2679"
}
Milosavljevic, N. B., Ristic, M. D., Peric-Grujic, A. A., Filipovic, J. M., Štrbac, S., Rakočević, Z. Lj.,& Kalagasidis Krušić, M.. (2011). Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study. in Colloids and Surfaces A-Physicochemical and Engineering Aspects
Elsevier., 388(1-3), 59-69.
https://doi.org/10.1016/j.colsurfa.2011.08.011
Conv_2679
Milosavljevic NB, Ristic MD, Peric-Grujic AA, Filipovic JM, Štrbac S, Rakočević ZL, Kalagasidis Krušić M. Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study. in Colloids and Surfaces A-Physicochemical and Engineering Aspects. 2011;388(1-3):59-69.
doi:10.1016/j.colsurfa.2011.08.011
Conv_2679 .
Milosavljevic, Nedeljko B., Ristic, Mirjana D., Peric-Grujic, Aleksandra A., Filipovic, Jovanka M., Štrbac, Svetlana, Rakočević, Zlatko Lj., Kalagasidis Krušić, Melina, "Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study" in Colloids and Surfaces A-Physicochemical and Engineering Aspects, 388, no. 1-3 (2011):59-69,
https://doi.org/10.1016/j.colsurfa.2011.08.011 .,
Conv_2679 .

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