Interactions between multi-walled carbon nanotubes and an azo-dye, Disperse Orange 3

DÍAZ COSTANZO, G; MONDRAGON, I; GOYANES, S.; LEDESMA, S.

San Sebastian, España

Congreso; Proceedings of V International Conference on Science and Technology of Composite Materials COMATCOMP 09; 2009

The interactions between multi-walled carbon nanotubes (MWCNT) and an azo-dye molecule were studied. The MWCNT were dispersed in different solutions of the dye Disperse Orange 3 (DO3) in tetrahydrofuran. An absorption band at 321 nm in the ultraviolet visible absorption spectra of the mixture, which does not belong to the dye neither the nanotubes, reveals the interactions. These interactions reach its maximum for a specific weight ratio DO3/MWCNTs equal to 2/3.