SYNTHESIS OF MULTI-WALL CARBON NANOTUBES USING Fe-LOADED MESOPOROUS MOLECULAR SIEVE AS CATALYTIC TEMPLATE

Mesoporous molecular sieves(MCM–41) was synthesized by the hydrothermal method and Fe-loaded mesoporous molecular sieve(Fe/MCM–41) was prepared by the wet impregnation with different concentrations of iron nitrate solution. The chemical vapor deposition method was employed to catalytically synthesize carbon nanotubes(CNTs) using Fe/MCM–41 as catalytic template and alcohol as carbon source at 800 ℃. The synthesized samples were characterized by the N2 physical adsorption,Raman spectrum,transmission electron microscope,and high resolution transmission electron microscope. The experimental results indicate that multi-wall carbon nanotubes are successfully synthesized and the diameter of the synthesized CNTs increases with the increase of Fe-loaded amount on the catalyst.