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Optical and Morphological Properties of Carbon Nanotube—Anatase Nanocomposites: Improvements in Visible Absorbance

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DOI: 10.4236/ojcm.2014.41009    3,184 Downloads   5,360 Views   Citations

ABSTRACT

In this work, we present the growth and optical characterization of carbon nanotube/TiO2 anatase nanocomposites. The composites are obtained by doping a bulk of anatase nanometric grains with different weight percentages of carbon nanotube (from 0.1% to 50%). We observe that only for tube concentrations between 0.1% and 2%, the growth process shows the formation of a matrix where carbon nanotubes are uniformed and dispersed in a bulk of TiO2 grains. Moreover, the X-ray photoelectron spectroscopy and surface morphology analysis (conducted from AFM images) indicated that the CNT absorption is a simple physisorption without chemical bonds formations between tube and dioxide. Finally, absorption in all the visible range has the increase of about 60% at very low concentration (2%) of carbon nanotubes.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

M. Barberio, P. Barone, A. Imbrogno, A. Bonanno and F. Xu, "Optical and Morphological Properties of Carbon Nanotube—Anatase Nanocomposites: Improvements in Visible Absorbance," Open Journal of Composite Materials, Vol. 4 No. 1, 2014, pp. 78-84. doi: 10.4236/ojcm.2014.41009.

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