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

Author

Xiaojie Song ; Fan Yang ; Xianbiao Wang ; Kehua Zhang

Author_Institution

Sch. of Mater. & Chem. Eng., Anhui Univ. of Archit., Hefei, China

Volume

6

Issue

10

fYear

2011

fDate

10/1/2011 12:00:00 AM

Firstpage

827

Lastpage

829

Abstract

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.

Keywords

X-ray diffraction; adsorption; carbon nanotubes; dyes; iron compounds; magnetometers; nanocomposites; nanofabrication; nanoparticles; particle reinforced composites; precipitation; transmission electron microscopy; Fe₃O₄-C; TEM; X-ray powder diffraction; XRD; active dye removal; adsorbent; adsorption efficiency; aqueous solution; in situ chemical precipitation method; magnetic multiwalled carbon nanotubes; methylene blue; nanocomposites; nanoparticles; transmission electron microscope; vibrating sample magnetometer;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2011.0428

Filename

6069677