| Abstrakt: |
In this work, has been studied the effects of CdS nanoparticles at different concentrations on the microstructure and optical properties of TiO2/CdS nanocomposites (T-CdS). The structural properties of T-CdS samples were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM). XRD analysis confirms the hexagonal wurtzite phase structure of CdS nanoparticles and the tetragonal anatase phase of TiO2 nanoparticles. TEM images appear the shapes and sizes of TiO2, CdS nanoparticles and T-CdS nanocomposite, where found in aggregates nanoparticles their sizes from 15 to 56 nm. By UV–vis diffuse reflectance spectrum (DRS) were determined Band-gap energies of the samples. The Photoluminescence (PL) analysis exposed, with the excitation wavelength of 285 nm, our samples exhibited the intensity of peak at 426 nm. Additionally, the FTIR spectroscopy of the samples exhibits the presence of functional groups. The thermal stability of T-CdS nanocomposite samples were determined by thermogravimetric and differential thermal analysis. [ABSTRACT FROM AUTHOR] |
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