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Carbon Nanotubes/Metal Nanoparticle Based Nanocomposites: Improvements in Visible Photoluminescence Emission and Hydrophobicity

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DOI: 10.4236/opj.2013.36A007    4,752 Downloads   7,234 Views   Citations

ABSTRACT

In this work, we present a study of growth and characterization of nanocomposites, based on multiwalled carbon nanotubes and metal nanoparticles (Al, Ag, Au, Co, Cu, Fe, Ni and Ti). We observe a very different behavior between noble and transitions metals. All the nanocomposites are characterized by a network of carbon nanotubes with randomly insertion of spherical metal particles with dimensions of about 100 nm (clearly visible in SEM images). In particular, in transition metal nanocomposites, each tube on sheet surface is covered by particles of about 40 - 50 nm and for all metals the XPS measurements indicate the absence of chemical bonds and the simply physisorption of nanoparticle on carbon nanotube buckypaper. Furthermore, the nanocomposites show very different properties respect to pure carbon nanotubes: they are hydrophobic, their roughness is about 50% smaller than carbon nanotube and they exhibit a strong visible photoluminescence, which is absent in pure nanotube.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

M. Barberio, P. Barone, F. Stranges, A. Romano, F. Xu and A. Bonanno, "Carbon Nanotubes/Metal Nanoparticle Based Nanocomposites: Improvements in Visible Photoluminescence Emission and Hydrophobicity," Optics and Photonics Journal, Vol. 3 No. 6A, 2013, pp. 34-40. doi: 10.4236/opj.2013.36A007.

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