Abstract: Carbon nanotubes (CNTs) were modificated using Fenton reagents. The effects of different Fenton reaction(Fenton,Fenton/US and Fenton/UV) on the surface of CNTs were studied. The reaction mechanism between Fenton regeant and carbon nanotubes was also investigated. The purity of CNTs was investigated by TGA. The functional groups on the surface of CNTs were investigated by FTIR spectra, and the microstructure of CNTs was investigated by transmission electron microscopy (TEM). The results show that Fenton/UV can introduce a great deal of hydroxyl groups onto the surface of carbon nanotubes, and can not damage it badly;the reaction mechanism between Fenton and carbon nanotubes is that hydroxyl radical (HO· ) generated in the reaction can produce hydroxylation with the undersaturation double bond on the surface of carbon nanotubes.

Key words: Carbon nanotubes (CNTs) were modificated using Fenton reagents. The effects of different Fenton reaction(Fenton,Fenton/US and Fenton/UV) on the surface of CNTs were studied. The reaction mechanism between Fenton regeant and carbon nanotubes was also investigated. The purity of CNTs was investigated by TGA. The functional groups on the surface of CNTs were investigated by FTIR spectra, and the microstructure of CNTs was investigated by transmission electron microscopy (TEM). The results show that Fenton/UV can introduce a great deal of hydroxyl groups onto the surface of carbon nanotubes, and can not damage it badly;the reaction mechanism between Fenton and carbon nanotubes is that hydroxyl radical (HO· ) generated in the reaction can produce hydroxylation with the undersaturation double bond on the surface of carbon nanotubes.