Decorating and Filling of Multi-Walled Carbon Nanotubes with TiO₂ Nanoparticles via Wet Chemical Method

Sedigheh Abbasi, Seyed Mojtaba Zebarjad, Seyed Hossein Noie Baghban

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DOI: 10.4236/eng.2013.52030                

Abstract

Multi-walled carbon nanotubes (MWCNTs) have been successfully modified with TiO₂ nanoparticles via wet chemical method. For this purpose tetra chloride titanium (TiCl₄) was used as titanium source. MWCNTs were exposed at different amount of TiCl₄ (0.25 and 0.1 ml) and different soaking times. The modified MWCNTs have been characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM results showed that the MWCNTs were fully decorated with TiO₂ at short term immersion. Increasing soaking time caused to fill the MWCNTs with TiO₂ nanoparticles. The results showed that the amount of precursor had a significant role on quantity of decoration. The decoration of outer surface of MWCNTs with TiO₂ was more noticeable at large amount of TiCl₄. XRD results revealed that the crystalline structure of TiO₂ on the surface and inner of MWCNTs was rutile. The average size of TiO₂ nanoparticles which modified MWCNTs were 20 nm.

Keywords

MWCNT; TiO2 Nanoparticles; Modification; Decoration; Filling

Conflicts of Interest

The authors declare no conflicts of interest.

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