Photochemical modification of single-walled carbon nanotubes with amino functionalities and their metal nanoparticles attachment

A useful method for sidewall modification of SWNTs with amino-containing substituents was developed by the use of radical process of photolysis of acetonitrile. The covalent functionalization was confirmed by means of Raman, XPS, FT-IR, mass and UV–Vis–NIR measurements. Subsequent treatments of amino-containing substituents-modified SWNTs with silver nanoparticles gave an attachment of silver on the surface of SWNTs through the amino linkage.