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Porous CdO/silica gel glasses were prepared through a sol-gel process. The nano-sized CdS was obtained by a gas reaction. For CdO/SiO 2 , the average pore radii were examined by mercury porosimetry. X-ray diffraction (XRD) was used to study the structural properties of the embedded CdS particles. Their crystallite sizes were estimated using Scherrer's equation. The band gap energy of embedded...
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