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 >= 30 degrees C, but at T >= 30 degrees C and for the degree of bound Cu2+ alpha >= 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:
DOI: 10.1134/S0036024407090051
ISSN: 0036-0244
WoS: 000253706400005
Scopus: 2-s2.0-34548496456
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Poljoprivredni fakultetTY - CONF AU - Kostić, Aleksandar AU - Jovanović, J. AU - Adnadjević, Borivoj AU - Popović, A. PY - 2007 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/1573 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 >= 30 degrees C, but at T >= 30 degrees C and for the degree of bound Cu2+ alpha >= 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 C3 - Russian Journal of Physical Chemistry A T1 - Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel EP - 1379 IS - 9 SP - 1374 VL - 81 DO - 10.1134/S0036024407090051 ER -
@conference{ author = "Kostić, Aleksandar and Jovanović, J. and Adnadjević, Borivoj and Popović, A.", 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 >= 30 degrees C, but at T >= 30 degrees C and for the degree of bound Cu2+ alpha >= 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", pages = "1379-1374", number = "9", volume = "81", doi = "10.1134/S0036024407090051" }
Kostić, A., Jovanović, J., Adnadjević, B.,& Popović, A.. (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 A, Jovanović J, Adnadjević B, Popović A. 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, Jovanović, J., Adnadjević, Borivoj, Popović, A., "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 . .