The possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0)..., with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.
TY - JOUR
AU - Hercigonja, Radmila
AU - Maksin, Danijela
AU - Nastasović, Aleksandra
AU - Trifunović, Snežana
AU - Glodic, Pavle B.
AU - Onjia, Antonije E.
PY - 2012
UR - http://cer.ihtm.bg.ac.rs/handle/123456789/1082
AB - The possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0), with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.
PB - Wiley-Blackwell, Malden
T2 - Journal of Applied Polymer Science
T1 - Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine
VL - 123
IS - 2
SP - 1273
EP - 1282
DO - 10.1002/app.34693
UR - Conv_2687
ER -
@article{
author = "Hercigonja, Radmila and Maksin, Danijela and Nastasović, Aleksandra and Trifunović, Snežana and Glodic, Pavle B. and Onjia, Antonije E.",
year = "2012",
abstract = "The possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0), with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.",
publisher = "Wiley-Blackwell, Malden",
journal = "Journal of Applied Polymer Science",
title = "Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine",
volume = "123",
number = "2",
pages = "1273-1282",
doi = "10.1002/app.34693",
url = "Conv_2687"
}
Hercigonja, R., Maksin, D., Nastasović, A., Trifunović, S., Glodic, P. B.,& Onjia, A. E.. (2012). Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine. in Journal of Applied Polymer Science
Wiley-Blackwell, Malden., 123(2), 1273-1282.
https://doi.org/10.1002/app.34693
Conv_2687
Hercigonja R, Maksin D, Nastasović A, Trifunović S, Glodic PB, Onjia AE. Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine. in Journal of Applied Polymer Science. 2012;123(2):1273-1282.
doi:10.1002/app.34693
Conv_2687 .
Hercigonja, Radmila, Maksin, Danijela, Nastasović, Aleksandra, Trifunović, Snežana, Glodic, Pavle B., Onjia, Antonije E., "Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine" in Journal of Applied Polymer Science, 123, no. 2 (2012):1273-1282,
https://doi.org/10.1002/app.34693 .,
Conv_2687 .
