REMOVAL OF Cu2+ AND Pb2+ IONS BY N-VINYL 2-PYRROLIDONE/ITACONIC ACID HYDROGELS FROM AQUEOUS SOLUTIONS

被引：32

作者：

Evren, Mumin ^{[1
]}

Acar, Isil ^{[1
]}

Guclu, Kubilay ^{[2
]}

Guclu, Gamze ^{[1
]}

机构：

[1] Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Istanbul, Turkey

[2] Istanbul Univ, Fac Engn, Dept Chem, TR-34320 Istanbul, Turkey

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2014年 / 92卷 / 01期

关键词：

N-vinyl-2-pyrrolidone; Itaconic acid; heavy metal ion; water absorption; adsorption; kinetic study; HEAVY-METAL IONS; WATER-UPTAKE BEHAVIOR; COMPETITIVE REMOVAL; BASIC-DYES; ADSORPTION; EQUILIBRIUM; NICKEL; CHROMIUM; SORPTION; CD(II);

D O I：

10.1002/cjce.21814

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, a series of crosslinked N-vinyl-2-pyrrolidone-itaconic acid (NVP-IA) hydrogels was prepared by free radical polymerisation in aqueous solution. Swelling, mechanical and adsorption properties for the removal of Cu2+ and Pb2+ ions from aqueous solutions of these hydrogels were investigated. Metal ion adsorption capacities of hydrogels for Cu2+ and Pb2+ ions were determined as 2.1 and 0.6mmolg (-1), respectively. Adsorption processes of metal ions onto the NVP-IA hydrogels follow pseudo-second-order type adsorption kinetics. The equilibrium adsorption data have been evaluated using Freundlich and Langmuir isotherm models. The results illustrated that the adsorption follows Freundlich isotherm.

引用

页码：52 / 59

页数：8

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