Acrylic three-dimensional networks. II. Behavior of different acrylic ion exchangers in the retention and elution processes of some metal cations

Maxim, Steliana; Flondor, Aurelia; Bunea, I.; Luca, Cornelia; Rabia, I.; Zerouk, J.; Iayadene, Farida; Guettaf, Hayet

doi:10.1002/(sici)1097-4628(19990613)72:11<1387::aid-app2>3.0.co;2-6

Cited by 9 publications

(8 citation statements)

References 14 publications

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“…In our previous studies, the crosslinked acrylic compounds based on ethylacrylate : acrylonitrile : divinylbenzene copolymer, functionalized with different polyalkylenepolyamines, were synthesized and characterized 16–19. Zn(II) sorption experiments were carried out on the acrylic copolymers with two crosslinking degrees (2 and 8%) having N , N ‐dimethylaminopropylamine groups.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Zn(II) by crosslinked acrylic copolymers with amine functional groups

Bârsănescu

Buhaceanu

Dulman

et al. 2004

J of Applied Polymer Sci

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Adsorption of Zn(II) ions from diluted aqueous solutions by the acrylic copolymer based on ethylacrylate : acrylonitrile : divinylbenzene matrix with different crosslinking degrees and ethylenediamine and triethylenetetramine functional groups was investigated. Adsorption experiments were carried out by batch method. The effects of the pH, initial concentration of zinc, time of contact, and the crosslinking degree of the copolymers were studied. On the basis of Langmuir and Freundlich isotherms, the parameters that characterize the adsorption were determined. The maximum Zn(II) retention capacity value (500 mg g Ϫ1 ) was obtained for the acrylic copolymer with 2% crosslinking degree and ethylenediamine, as functional groups.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Zn(II) by crosslinked acrylic copolymers with amine functional groups

Bârsănescu

Buhaceanu

Dulman

et al. 2004

J of Applied Polymer Sci

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“…1(a)] as an adsorbent, which was performed by the carboxymethylation reaction of an acrylic weak base exchange resin with sodium chloroacetate. The synthesis of the weak acid resin was shown previously 21…”

Section: Methodsmentioning

confidence: 99%

Removal of Basic Blue 3 by sorption onto a weak acid acrylic resin

Bârsănescu

Buhaceanu

Dulman

2009

J of Applied Polymer Sci

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A weak acid acrylic resin was used as an adsorbent for the investigation of Basic Blue 3 (BB3) adsorption kinetics, isotherms, and thermodynamic parameters. Batch adsorption studies were carried out to evaluate the effect of pH, contact time, initial concentration (28-100 mg/ g), adsorbent dose (0.05-0.3 g), and temperature (290-323 K) on the removal of BB3. The adsorption equilibrium data were analyzed by the Langmuir, Temkin, and Freundlich isotherm models, with the best fitting being the first one. The adsorption capacity (Q o ) increased with increasing initial dye concentration, adsorbent dose, and temperature; the highest maximum Q o (59.53 mg/g) was obtained at 323 K. Pseudo-first-order and pseudo-second-order kinetic models and intraparticle diffusion models were used to analyze the kinetic data; good agreement between the experimental and calculated amounts of dye adsorbed at equilibrium were obtained for the pseudo-second-order kinetic models for the entire investigated concentrations domain. Various thermodynamic parameters, such as standard enthalpy of adsorption (DH o ¼ 88.817 kJ/mol), standard entropy of adsorption (DS o ¼ 0.307 kJ mol À1 K À1 ), and Gibbs free energy (DG o < 0, for all temperatures investigated), were evaluated and revealed that the adsorption process was endothermic and favorable.

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“…The synthesis of the weak base resins used as adsorbents was previously detailed [32] as well as some studies on the sorption of Zn(II) [33], Co(II) [34] and Ni(II) [35] with the polymers of interest.…”

Section: Introductionmentioning

confidence: 99%

Silver sorption on acrylic copolymers functionalized with amines. Equilibrium and kinetic studies

Buhaceanu¹,

Sarghie

Bârsănescu³

et al. 2009

Open Chemistry

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Abstract:The sorption capacity of three weak base ion exchangers based on acrylic copolymers functionalized with ethylenediamine, triethylenetetramine and N, N-dimethylamino propylamine for Ag(I) ions was evaluated. Adsorption experiments were carried out by batch method. The effect of pH, crosslinking degree of copolymers, amount of sorbent, initial ion concentration, contact time and temperature was studied. The parameters which characterize the retention process were estimated using Langmuir and Freundlich isotherm models, the best fitting being for the first model. Kinetic data were fitted to pseudo-first order, pseudo-second order and intraparticle diffusion models. Experimental data were in good agreement with the pseudo second order.

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Acrylic three-dimensional networks. II. Behavior of different acrylic ion exchangers in the retention and elution processes of some metal cations

Cited by 9 publications

References 14 publications

Adsorption of Zn(II) by crosslinked acrylic copolymers with amine functional groups

Adsorption of Zn(II) by crosslinked acrylic copolymers with amine functional groups

Removal of Basic Blue 3 by sorption onto a weak acid acrylic resin

Silver sorption on acrylic copolymers functionalized with amines. Equilibrium and kinetic studies

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