Synthesis of Carbon Nitride Nanotubes via a Catalytic-Assembly Solvothermal Route

Large-scale synthesis of carbon nitride nanotubes was carried out by a catalytic-assembly solvothermal route involving the reaction of cyanuric chloride (C3N3Cl3) with sodium using NiCl2 as catalyst precursor. The carbon nitride nanotubes with the CN stoichiometry are orderly assembled as bundles and have an outer diameter of about 50−100 nm and an inner diameter of 30−70 nm. The lengths of the nanotubes are up to several tens of micrometers.