Magnetic Nanoparticles Derivatized with both Functional Moieties for the Recovery of Heavy Metal Ions in Environmental Water

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Abstract:

Heavy metal ions are increasingly being released into environment, leading to serious pollution and significant health problems to human being. To address the adverse effects posed by them, in the present study, a remediation method by magnetic nanoparticles was proposed. The magnetic particles were synthesized by a solvothermal process first. Then they were derivatized with dual functional moieties of amino- and mercapto- by reacting with aminopropyl-triethoxysilane and mercaptopropyl-triethoxysilane simultaneously. The prepared material was characterized by infrared spectrometry and elemental analysis. Both functional groups of amino- and mercapto- were present within the material. Since amino- and mercapto- have high affinity for heavy metal ions, the material can be used to retrieve these ions from water samples. Pb2+ and Mn2+ were used as model analytes to evaluate the effectiveness of the material. It is found that, after 60 min adsorption, the ions were almost total removed from the sample solution.

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Periodical:

Advanced Materials Research (Volumes 129-131)

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617-620

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August 2010

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[1] L.S. Zhong, J.S. Hu, A.M. Cao, Q. Liu, W.G. Song and L.J. Wan. 3D flowerlike ceria micro/nanocomposite structure and its application for water treatment and CO removal. Chem Mater Vol. 19 (2007) p.1648.

DOI: 10.1021/cm062471b

Google Scholar

[2] S. Wang and R.F. Zhang. Column preconcentration of lead in aqueous solution with macroporous epoxy resin-based polymer monolithic matrix. Anal Chim Acta Vol. 575 (2006) p.166.

DOI: 10.1016/j.aca.2006.05.086

Google Scholar

[3] R. Celis, M.C. Hermosín and J. Cornejo. Heavy metal adsorption by functionalized clays. Environ Sci Technol. Vol. 34 (2000) p.4593.

DOI: 10.1021/es000013c

Google Scholar

[4] L. Mercier and T.J. Pinnavaia. Heavy metal lan adsorbents formed by the grafting of a thiol functionality to mesoporous silica molecular sieves: Factors affecting Hg(II) uptake. Environ Sci Technol. Vol. 32 (1998) p.2749.

DOI: 10.1021/es970622t

Google Scholar

[5] H. Deng, X. Li, Q. Peng, X. Wang, J. Chen and Y. Li. Monodisperse magnetic single-crystal ferrite microspheres. Angew Chem Int Ed Vol. 44 (2005) p.2782.

DOI: 10.1002/anie.200462551

Google Scholar