• Elshypany, Rania
• Mubarak, Mahmoud F.
• Shawky, Amira M.
• Sharkawy, Heba M. El

Abstract

<jats:title>Abstract</jats:title><jats:p>The tertiary composite of TiO<jats:sub>2</jats:sub>/CuO @ Ag (TCA) were synthesized by the solid state method using different ratios of TiO<jats:sub>2</jats:sub>/CuO NCs and Ag NPs. The structural, morphological, and optical properties of nanocomposites were analyzed by scanning electron microscope, Transmission electron microscope, X-ray diffraction, Fourier transform infrared spectra, UV–Vis diffuse reflectance spectra (UV–Vis/DRS) and photoluminescence spectrophotometry. The results showed enhanced activity of TCA hybrid nano crystals in oxidizing MB in water under visible light irradiation compared to pure TiO<jats:sub>2</jats:sub>. The photocatalytic performance TCA samples increased with suitable Ag content. The results show that the photo degradation efficiency of the TiO<jats:sub>2</jats:sub> compound improved from 13 to 85% in the presence of TiO<jats:sub>2</jats:sub>–CuO and to 98.87% in the presence of Ag containing TiO<jats:sub>2</jats:sub>–CuO, which is 7.6 times higher than that of TiO<jats:sub>2</jats:sub>. Optical characterization results show enhanced nanocomposite absorption in the visible region with long lifetimes between e/h+ at optimal TiO<jats:sub>2</jats:sub>–CuO/Ag (TCA<jats:sub>2</jats:sub>) ratio. Reusable experiments indicated that the prepared TCA NC photo catalysts were stable during MB photo degradation and had practical applications for environmental remediation.</jats:p>

Topics

• nanoparticle
• nanocomposite
• impedance spectroscopy
• compound
• photoluminescence
• silver
• x-ray diffraction
• experiment
• spectrophotometry