Strontium(II) ion uptake on poly(N-vinyl imidazole)-based hydrogels

被引：9
作者：
Garg, Godawari [1 ]
Chauhan, Ghanshyam S. [1 ]
Ahn, J. -H. [2 ]
机构：
[1] Himachal Pradesh Univ, Dept Chem, Shimla 171005, India
[2] Gyeongsang Natl Univ, Dept Chem & Biol Engn, Jinju 660701, South Korea
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2012年 / 124卷 / 05期
关键词：
crosslinking; hydrogels; structure-property relations; SOLVENT-EXTRACTION; URANYL IONS; SR-90; ADSORPTION; REMOVAL; DESIGN; CESIUM; BEADS; TEETH; CLAY;
D O I：
10.1002/app.35369
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this article, we report on the extraction of Sr(II) ions from aqueous solution with a series of poly(N-vinyl imidazole)-based hydrogels. The hydrogels were synthesized by the crosslinking of N-vinyl imidazole with four different crosslinkers with ? rays as initiators. The well-characterized hydrogels were used as Sr(II) sorbents. Sr(II) uptake was determined with a colorimetric method with Rose Bengal anionic dye. Scanning electron microscopyenergy-dispersive spectroscopy analysis of the Sr(II)-loaded polymers was recorded to ascertain the uptake of Sr(II) ions. The experimental adsorption values were analyzed with the Freundlich and Temkin equations, and the kinetics of adsorption were investigated with a pseudo-second-order sorption kinetic model. The results show that the equilibrium data fit well in the Freundlich isotherm and followed a pseudo-second-order kinetic model. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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页码：3721 / 3727
页数：7
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