Photocatalytic degradation using a nanocomposite of multi-walled carbon nanotubes and TiO2 nanoparticles

Abstract EN

Multi-walled carbon nanotubes (MWNTs) with titanium dioxide (TiO2 -P25) were synthesized by simple dipping and evaporation method.

This method was used for synthesis of different ratios of titanium dioxide loaded on MWNTs (P25/X%MWNT, where X=0.25, 0.5 and 1).

Experimental results also proved that MWNT/ TiO2 nanocomposites display relatively higher photocatalytic activity than TiO2 for the photocatalytic degradation of Cobalamin.

The enhancements in the activity for the nanocomposites in the existence of MWNTs or synergetic effect were explained to be related to the increasing of the surface area of synthesized composites and the transition of the excited electron from conduction band (CB) of TiO2 to the surfaces of MWNTs leading to reducing the recombination of formed electrons and holes.