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A nanocomposite of magnetic hydroxyapatite was synthesized and tested as an adsorbent for the removal of copper (Cu (II)) and nickel (Ni(II)) from aqueous solution. The adsorbent was investigated using Transmission Electron Microscopy (TEM), Scanning Electron Microscopy equipped with an Energy Dispersive Spectrometer (SEM/EDS), X-ray powder diffraction (XRD) and the Brunauer–Elmet–Teller nitrogen adsorption technique (BET-N2 adsorption). Batch experiments were carried out to determine and compare the adsorption parameters of Fe3O4 and its composite with hydroxyapatite. It was found that the adsorbent is nanostructured and has a specific surface area of 101.2 m2 g−1. The Langmuir adsorption isotherm was found to be an appropriate model to describe the adsorption processes, showing the adsorption capacities of Cu(II) and Ni(II) of 48.78 mg g−1 and 29.07 mg g−1, respectively. In addition to the high adsorption capacity, the fully-adsorbed material could be easily separated from aqueous media using an external magnetic field. These results suggested that the utilization of new hydroxyapatite – Fe3O4 nanocomposite for the removal of Cu(II) and Ni(II) is a promising method in water technology.

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Autor(es)

Thanh, Dong Nguyen -  Novák, Pavel -  Vejpravova, Jana -  Vu, Hong Nguyen -  Lederer, Jaromír -  Munshi, Tasnim - 

Id.: 71095801

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Tipo:  application/pdf - 

Tipo de recurso: Article  -  PeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Formatos:  application/pdf - 

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://eprints.lincoln.ac.uk/31354/
[References] http://doi.org/10.1016/j.jmmm.2017.11.064
[References] 10.1016/j.jmmm.2017.11.064

Fecha de contribución: 16-mar-2018

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* Thanh, Dong Nguyen and Novák, Pavel and Vejpravova, Jana and Vu, Hong Nguyen and Lederer, Jaromír and Munshi, Tasnim (2018) Removal of copper and nickel from water using nanocomposite of magnetic hydroxyapatite nanorods. Journal of Magnetism and Magnetic Materials . ISSN 0304-8853

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