Preparation and characterization of iron oxide nanoparticles coated with chitosan for removal of Cd(II) and Cr(VI) from aqueous solution

被引：23
|
作者：
Shalaby, Th. I. [1 ]
Fikrt, N. M. [1 ]
Mohamed, M. M. [1 ]
El Kady, M. F. [1 ]
机构：
[1] Univ Alexandria, Med Res Inst, Dept Med Biophys, El Hadra, Egypt
来源：
WATER SCIENCE AND TECHNOLOGY | 2014年 / 70卷 / 06期
关键词：
adsorption; adsorption kinetics; chitosan; co-precipitation; heavy metals; magnetic nanoparticles; WATER; ADSORPTION; IONS;
D O I：
10.2166/wst.2014.315
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study investigated the applicability of magnetite Fe3O4 nanoparticles coated with chitosan (CMNs) for the removal of some toxic heavy metals from simulated wastewater. Magnetic nanomaterials were synthesized using the co-precipitation method and characterized by transmission electron microscope, scanning electron microscope, X-ray diffraction, and Fourier transformer infrared spectroscopy. The magnetic properties of the prepared magnetic nanoparticles were determined by a vibrating-sample magnetometer. Batch experiments were carried out to determine the adsorption kinetics of Cr(VI) and Cd(II) by magnetic nanoparticles. It is noteworthy that CMNs show a highly efficient adsorption capacity for low concentration Cr(VI) and Cd(II) ions solution, which can reach 98% within 10 min.
引用
收藏
页码：1004 / 1010
页数：7
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