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

• Autorzy: Rodica Buhaceanu , Ioan Sarghie , Adriana Barsanescu , Viorica Dulman , Ioan Bunia
• Języki publikacji: EN

Abstrakty

EN

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. [...]

Słowa kluczowe

EN

Silver; Sorption; Chelating resin; Equilibrium and kinetic study

• Czasopismo: Open Chemistry
• Rocznik: 2009
• Tom: 7
• Numer: 4
• Strony: 827-835

Daty

wydano

2009-12-01

online

2009-10-06

Twórcy

autor

Rodica Buhaceanu

• Faculty of Chemistry, Al. I. Cuza University, 700506, Iasi, Romania,

autor

Ioan Sarghie

• Faculty of Industrial Chemistry and Environment Protection, Gh. Asachi Technical University, 700050, Iasi, Romania

autor

Adriana Barsanescu

• Faculty of Chemistry, Al. I. Cuza University, 700506, Iasi, Romania

autor

Viorica Dulman

• Faculty of Chemistry, Al. I. Cuza University, 700506, Iasi, Romania

autor

Ioan Bunia

• P. Poni Institute of Macromolecular Chemistry, 700487, Iasi, Romania

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Identyfikatory

DOI

10.2478/s11532-009-0064-5