Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel
Abstract
Isothermal kinetics of copper (ion) binding to poly(acrylic acid) (PAA) hydrogel at 20, 25, 35 and 45 C was investigated. Isothermal conversions and kinetic curves of Cu2+ binding to the PAA hydrogel were determined. It was found that the well-known kinetic models of Peppas cannot be applied to describing the entire process of Cu2+ binding. The new method for the determination of the kinetic model of the Cu2+ binding process, as well as the activation energy density distribution functions of PAA hydrogel interaction with Cu2+, were established. It was found that Cu2+ diffusion to the active centers (with E-a = 9 kJ/mol) has a dominant influence on the kinetics of the process at temperatures T gt = 30 degrees C, but at T gt = 30 degrees C and for the degree of bound Cu2+ alpha gt = 0.2, the interaction of Cu2+ from the adsorption center with E-a = 26 kJ/mol is dominant.
Source:
Russian Journal of Physical Chemistry A, 2007, 81, 9, 1374-1379Publisher:
- Maik Nauka/Interperiodica/Springer, New York
Funding / projects:
- Fizička hemija dinamičkih stanja i struktura neravnotežnih sistema - od monotone do oscilatorne evolucije i haosa (RS-MESTD-MPN2006-2010-142025)
DOI: 10.1134/S0036024407090051
ISSN: 0036-0244
WoS: 000253706400005
Scopus: 2-s2.0-34548496456
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Institution/Community
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Kostić, Aleksandar Ž. AU - Jovanovic, J. AU - Adnađević, Borivoj AU - Popović, Aleksandar R. PY - 2007 UR - https://cherry.chem.bg.ac.rs/handle/123456789/921 AB - Isothermal kinetics of copper (ion) binding to poly(acrylic acid) (PAA) hydrogel at 20, 25, 35 and 45 C was investigated. Isothermal conversions and kinetic curves of Cu2+ binding to the PAA hydrogel were determined. It was found that the well-known kinetic models of Peppas cannot be applied to describing the entire process of Cu2+ binding. The new method for the determination of the kinetic model of the Cu2+ binding process, as well as the activation energy density distribution functions of PAA hydrogel interaction with Cu2+, were established. It was found that Cu2+ diffusion to the active centers (with E-a = 9 kJ/mol) has a dominant influence on the kinetics of the process at temperatures T gt = 30 degrees C, but at T gt = 30 degrees C and for the degree of bound Cu2+ alpha gt = 0.2, the interaction of Cu2+ from the adsorption center with E-a = 26 kJ/mol is dominant. PB - Maik Nauka/Interperiodica/Springer, New York T2 - Russian Journal of Physical Chemistry A T1 - Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel VL - 81 IS - 9 SP - 1374 EP - 1379 DO - 10.1134/S0036024407090051 ER -
@article{ author = "Kostić, Aleksandar Ž. and Jovanovic, J. and Adnađević, Borivoj and Popović, Aleksandar R.", year = "2007", abstract = "Isothermal kinetics of copper (ion) binding to poly(acrylic acid) (PAA) hydrogel at 20, 25, 35 and 45 C was investigated. Isothermal conversions and kinetic curves of Cu2+ binding to the PAA hydrogel were determined. It was found that the well-known kinetic models of Peppas cannot be applied to describing the entire process of Cu2+ binding. The new method for the determination of the kinetic model of the Cu2+ binding process, as well as the activation energy density distribution functions of PAA hydrogel interaction with Cu2+, were established. It was found that Cu2+ diffusion to the active centers (with E-a = 9 kJ/mol) has a dominant influence on the kinetics of the process at temperatures T gt = 30 degrees C, but at T gt = 30 degrees C and for the degree of bound Cu2+ alpha gt = 0.2, the interaction of Cu2+ from the adsorption center with E-a = 26 kJ/mol is dominant.", publisher = "Maik Nauka/Interperiodica/Springer, New York", journal = "Russian Journal of Physical Chemistry A", title = "Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel", volume = "81", number = "9", pages = "1374-1379", doi = "10.1134/S0036024407090051" }
Kostić, A. Ž., Jovanovic, J., Adnađević, B.,& Popović, A. R.. (2007). Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel. in Russian Journal of Physical Chemistry A Maik Nauka/Interperiodica/Springer, New York., 81(9), 1374-1379. https://doi.org/10.1134/S0036024407090051
Kostić AŽ, Jovanovic J, Adnađević B, Popović AR. Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel. in Russian Journal of Physical Chemistry A. 2007;81(9):1374-1379. doi:10.1134/S0036024407090051 .
Kostić, Aleksandar Ž., Jovanovic, J., Adnađević, Borivoj, Popović, Aleksandar R., "Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel" in Russian Journal of Physical Chemistry A, 81, no. 9 (2007):1374-1379, https://doi.org/10.1134/S0036024407090051 . .