Influence of Functional Groups on the Dispersion of TiO₂ Particles on Carbon Nanotube

Abstract

In this work, the functional groups on acid-treated and heat-treated carbon nanotubes (CNTs) were investigated by Fourier transform infrared spectroscopy and x-ray photoelectron spectroscopy. The morphology of the TiO₂ particles decorated on the two kinds of CNTs was also studied, respectively. The results indicated that the functional groups could adsorb ions in the aqueous solution due to their electronegativity and benefit for the well dispersion of TiO₂.The mechanism of TiO₂ well dispersion on CNTs surface was also discussed.

Keywords:

• Carbon nanotube
• dispersion
• functional groups
• TiO₂