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

被引：31
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.
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页码：52 / 59
页数：8
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