Synthesis and charecterization of CuO Nanorods by Hydrothermal method

This paper reports the synthesis of CuO nanorods from Copper (II) sulphate (CuSO4) aqueous solution under the hydrothermal condition variable concentration of NaOH (aq) at 160 degrees C for 12 h. The thin films of the nanorods on glass were prepared by dip-coating technique. The structure and chemical natures of the obtained materials were studied using powder X-ray diffraction (XRD), Scanning Electron Microscopy (SEM). The optical properties of the nanorods were also studied by UV-visible spectra. The diffraction peaks were quite identical to those of pure CuO, which can be indexed as the monoclinic structure CuO. The diameters of CuO nanorods vary from 10 nm to 100 nm and the length is about several micrometers. The top-view SEM images be seen clearly that high-density, horizontally scattered nanorod were grown on the product prepared at concentration of NaOH (aq) 10 Mat 160 degrees C for 12 h. The spectral of UV-vis data showed the strong cut off at 336 nm.