چكيده به لاتين
In this research activity, nitrogen doped graphene and Zno nanorods synthesized by hydrothermal method. In the next step, nitrogen doped graphene-Zno nanorods composite samples were prepared from Zno nanorods and nitrogen doped graphene with different concentrations by spin coater method. To investigate the photocatalytic degradation caused by visible light, the synthesized catalysts were immersed in a violet crystal pigment solution.
The samples were characterized by Scanning electron microscope(SEM),x-ray diffraction(XRD),Fourier transform infrared(FT-IR)and UV-Visible(UV-Vis)spectroscopy.SEM was used to study the morphologhy of the samples. SEM images of Zno nanorods showed that the Zno nanorods were 50 nm in diameter and uniform.To investigate the phase consisting of the samples, XRD analysis was performed, the XRD pattern of the samples showed that in nanocomposites, the Zno was crystallized in the Wurtzite structure and grown in the direction of the plane (0 0 2) and also showed the disappearance of nitrogen doped graphene peaks.It is due to the low diffraction of graphene doped with nitrogen on Zno nanorods. FT-IR spectroscopy was carried out to investigate the reduction of graphene oxide and the addition of nitrogen to the graphene, showing observations of reduced graphene oxide and graphene doping to nitrogen.UV-VIS spectroscopy was performed to investigate the photocatalytic properties of the synthesized nanocomposites. The UV-VIS spectra analysis showed that composites with varying percentages of nitrogen doped graphene, nitrogen impregnated 6%, 4%, and 2%, compared with Zno nanorods, degraded the crystal violet by 75%, 77%, and 79%, compared to catalyst Zno nanorods with 69% degradation, respectively. Improved the photocatalytic degradation process of Zno nanorods and showed the highest photocatalytic degradation among the synthesized samples of %2NG-ZnO nanorods after 120 minutes under visible light irradiation.
