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Preparation of magnetic multi-walled carbon nanotubes and their application in active dye removal

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4 Author(s)
Xiaojie Song ; Sch. of Mater. & Chem. Eng., Anhui Univ. of Archit., Hefei, China ; Fan Yang ; Xianbiao Wang ; Kehua Zhang

Fe3O4 nanoparticles were introduced onto the surface of multi-walled carbon nanotubes (MWNTs) via in situ chemical precipitation method. The products (MWNTs-Fe3O4 nanocomposites) were characterised by X-ray powder diffraction, transmission electron microscope and vibrating sample magnetometer. The MWNTs-Fe3O4 nanocomposites were employed as a new adsorbent for dye removal. The adsorption results showed that adsorption efficiency of MWNTs-Fe3O4 nanocomposites was high for methylene blue. As a magnetic material, it could be separated easily from aqueous solution by an external magnet.

Published in:

Micro & Nano Letters, IET  (Volume:6 ,  Issue: 10 )