Determination of the competitive adsorption of heavy metal ions on poly(N-vinyl-2-pyrrolidone/acrylic acid) hydrogels by differential pulse polarography

被引：30

作者：

Çaykara, T ^{[1
]}

Inam, R ^{[1
]}

机构：

[1] Gazi Univ, Fac Art & Sci, Dept Chem, TR-06500 Ankara, Turkey

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2003年 / 89卷 / 08期

关键词：

adsorption; hydrogels; radiation;

D O I：

10.1002/app.12328

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(N-vinyl-2-pyrrolidone) and poly(N-vinyl-2-pyrrolidone/ acrylic acid) hydrogels were prepared by gamma irradiation for the removal of heavy metal ions (i.e., lead, copper, zinc, and cadmium) from aqueous solutions containing different amounts of these ions (2.5-10 mg/L) and at different pH values (1-13). The observed affinity order in adsorption of these metal ions on the hydrogels was Zn(II) > Pb(II) > Cu(II) > Cd(II) under competitive conditions. The optimal pH range for the heavy metal ions was from 7 to 9. The adsorption of the heavy metal ions decreased with increasing temperature in both water and synthetic seawater conditions. (C) 2003 Wiley Periodicals, Inc.

引用

页码：2013 / 2018

页数：6

共 44 条

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J. Donghua Univ., 2007, 4 (542-545):
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