Removal of heavy metals from wastewater using magnetic nanocomposites: Analysis of the experimental conditions

被引：42

作者：

Horst, Maria F. ^{[1
]}

Alvarez, Mariana ^{[1
]}

Lassalle, Veronica L. ^{[1
]}

机构：

[1] Univ Nacl Sur, Dept Quim, RA-8000 Bahia Blanca, Buenos Aires, Argentina

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2016年 / 51卷 / 03期

关键词：

Magnetic separation; nanoadsorbents; chitosan; heavy metals; iron oxides; nanocomposites; IRON-OXIDE NANOPARTICLES; AQUEOUS-SOLUTION; MODIFIED CHITOSAN; ZN(II) IONS; COPPER IONS; ADSORPTION; CU(II); CD(II); COMPOSITE; CR(VI);

D O I：

10.1080/01496395.2015.1086801

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This contribution provides insight on the elimination of heavy metals from water resources using magnetic separation. Nanocomposites based on magnetite and chitosan were prepared. An exhaustive characterization of the magnetic adsorbents was developed. Adsorption assays were performed in batch using Cu, Zn, Cd, and Cr as model heavy metals. The efficiency of magnetic adsorbents followed the order: Cu > Cd > Zn > Cr, with maximum values of 188, 159, 72, and 46 mg of Me/g of nanocomposite, respectively. Kinetics and mechanistic issues were studied. The magnetic materials were efficient for five to eight cycles using Cu(II),Cd(II), and Cr(VI).

引用

页码：550 / 563

页数：14

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