Preparation and characterization ZnO nanorods for photocatalyst application

الملخص EN

Zinc oxide (ZnO) nanorods are prepared onto glass substrates via chemical bath deposition method.

ZnO nanoparticles is prepared onto glass substrate to act as a seed layer for grown ZnO NRs.

field emission scanning electron microscope (FESEM) image confirmed that the grown rods have hexagonal shape covered the surface of substrate.

further, the prepared ZnO NRs appeared good crystallinity according to X-ray diffraction method.

the absorption edge for seeds nanoparticles layer appeared at wavelength of 362nm (3.42 eV) while it was at around 479nm (3.27 eV) nm for the grown ZnO NRs.

the grown ZnO NRs showed two emission peaks at 381nm and 540nm corresponding to near band-to-band electron-hole recombination and oxygen vacancies, respectively.

degradation rate of methylene blue (MB) dye was 0.01% after 1h of illumination by UV light and increased to 71.4% after 4h of illumination.