Preparation of Magnetic Carboxymethylchitosan Nanoparticles for Adsorption of Heavy Metal Ions

被引：113

作者：

Charpentier, Thibaut V. J. ^{[1
]}

Neville, Anne ^{[1
]}

Lanigan, Joseph L. ^{[1
]}

Barker, Richard ^{[1
]}

Smith, Margaret J. ^{[2
]}

Richardson, Thomas ^{[3
]}

机构：

[1] Univ Leeds, Inst Funct Surfaces, Mech Engn, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Glasgow, Ctr Text Conservat & Tech Art Hist, Robertson Bldg,Dumbarton Rd, Glasgow G11 6AQ, Lanark, Scotland

[3] Univ Bristol, Sch Phys, Bristol BS8 1TL, Avon, England

来源：

ACS OMEGA | 2016年 / 1卷 / 01期

关键词：

AQUEOUS-SOLUTION; NI(II) IONS; II IONS; CHITOSAN; REMOVAL; KINETICS; CD(II); CU(II); WATER; EQUILIBRIUM;

D O I：

10.1021/acsomega.6b00035

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The remediation of metal and heavy metal contaminants from water ecosystems is a long-standing problem in the field of water management. The development of efficient, cost effective, and environmentally friendly natural polymer-based adsorbents is reported here. Magnetic chitosan (CS) and carboxymethylchitosan (CMC) nanocomposites have been synthesized by a simple one-step chemical coprecipitation method. The nanoparticles were assessed for the removal of Pb2+, Cu2+, and Zn2+ ions from aqueous solution. Kinetic and thermodynamic models were used to describe and understand the adsorption process of the ions onto the nanomaterials. The interactions between the ions and the biopolymer-based composites are reversible, which means that the nanoparticles can be regenerated in weakly acidic or EDTA containing solution without losing their activity and stability for water cleanup applications.

引用

页码：77 / 83

页数：7

共 35 条

[1] Radiation grafting of ionically crosslinked alginate/chitosan beads with acrylic acid for lead sorption [J].