The zinc selenide and copper selenide thin lms were deposited by chemical deposition technique on glass substrates. For both lms, sodium selenosulphate was used as a selenide ion source in an alkaline solution. The X-ray diraction patterns show that the ZnSe has a cubic structure and Cu3Se2 lm has a tetragonal structure. The relative intensity K β /Kα of zinc and copper selenide thin lms has been measured by using a 241 Am radioisotope source (75 mCi). The obtained results were compared with the theoretical values.
In this study, nickel oxide nanostructured particles were produced by hydrothermal method. X-Ray diffraction (XRD) and transmission electron microscope (TEM) measurements were performed to determine the physical properties of these nanostructured particles. When XRD results are examined, it is seen that NiO nanoparticles are cubic structure. It is understood from the TEM images that these particles are nanostructured. The photocatalytic activities of nanostructured particles were investigated. This examination was carried out by using methylene and methyl blue dyes under the xenon lamp. It has been observed that the photocatalytic degradation rates are high. It was found that the degradation of NiO nanostructured particles on methylene blue was about 59%, the decomposition on methylene blue added H2O2 was about 96% and the degradation on methyl blue was about 92%.
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