Fe3O4-壳聚糖磁性微球的制备及对Cu2+的吸附性能

陈志军; 朱海燕; 郝营; 尹甲兴; 王雪兆; 齐连怀; 孙旭亮; 魏永豪

doi:10.3969/j.issn.1004-1478.2012.02.001

March 2012

Article Contents

CHEN Zhi-jun, ZHU Hai-yan, HAO Ying, et al. Preparation of Fe3O4-chitosan magnetic microspheres and their application in Cu2+ adsorption property[J]. Journal of Light Industry, 2012, 27(2): 1-4,21. doi: 10.3969/j.issn.1004-1478.2012.02.001

Citation: CHEN Zhi-jun, ZHU Hai-yan, HAO Ying, et al. Preparation of Fe3O4-chitosan magnetic microspheres and their application in Cu2+ adsorption property[J]. Journal of Light Industry, 2012, 27(2): 1-4,21. doi: 10.3969/j.issn.1004-1478.2012.02.001 shu

Preparation of Fe₃O₄-chitosan magnetic microspheres and their application in Cu²⁺ adsorption property

College of Material and Chem.Eng., Zhengzhou Univ.of Light Ind., Zhengzhou 450002, China

Received Date: 2012-02-22
Available Online: 2012-03-15

Abstract
Fe₃O₄-chitosan magnetic microspheres were prepared by modifying carboxyl Fe₃O₄ nanoparticle with chitosan.The resulted samples were characterized by X-ray diffraction,scanning electron microscope and thermogravimetry.The adsorption amounts of Cu²⁺ were detected with an atomic absorption spectroscopy.In addition,the effect of parameters such as contact time,pH and Cu²⁺ initial concentration on the adsorption capacities was also discussed.The results have showed that Fe₃O₄-chitosan magnetic microspheres have a narrow size distribution with a mean diameter of 110 nm.Fe₃O₄-chitosan magnetic microspheres are able to adsorb Cu²⁺,and the maximum absorption quantity can reach 21.3 mg/g.With the increase of adsorbent dosage and temperature,the unit adsorption capacity decreased and the adsorption was better at room temperature.The adsorption of the magnetic microspheres is greatly influenced by the factors of initial concentration of Cu²⁺ and pH value,and the adsorption capacity was higher at 120 mg/L, and 5.0
- Fe₃O₄,
- chitosan magnetic microsphere,
- Cu²⁺ adsorption
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