  A comparative study between zinc oxide graphene-carbon nanotubes
nanocomposite and ZnO nanoparticles was carried out to investigate their
abilities in the degradation of Rhodamine B dye. We utilized the Modified
Hummer method to prepare the graphene oxide nanosheet. Moreover,
graphene-carbon nanotubes had been synthesized from GO and multi-walled carbon
nanotubes with a hydroxyl group. The hydrothermal method was employed to
fabricate the zinc oxide graphene-carbon nanotubes nanocomposite from ZnO
nanoparticles and graphene-carbon nanotubes. During the characterization by
X-ray Diffraction (XRD), all the significant peaks of ZnO and zinc oxide
graphene-carbon nanotubes nanocomposite were found in the same phase angle. In
addition, the final nanocomposite was also characterized by Field Emission
Scanning Electron Microscope (FESEM) and Energy Dispersive X-ray Spectroscopy
(EDS). Finally, from the dye degradation test, it was apparent that zinc oxide
graphene-carbon nanotubes nanocomposite showed superior dye removal ability
compared to the ZnO nanoparticles.
