Abstract
TiO2 nanopowders doped with Cu and Zr were prepared via process-controlled sol–gel method. The effects of Zr and Cu doping on the structural and photocatalytic properties of synthesized nanopowders have been studied by X-ray diffraction (XRD), scanning electron microscope, transmission electron microscope, FTIR, and UV–Vis absorption spectroscopy. XRD results suggested that adding dopants has a great effect on crystallinity and particle size of TiO2. Titania rutile phase formation was inhibited by Zr4+ and promoted by Cu2+ doping. The photocatalytic activity was evaluated by degradation kinetics of aqueous methyl orange under visible spectra radiation. The results showed that the photocatalytic activity of the 15 % Zr-doped TiO2 nanopowder has a larger degradation efficiency than 5 % Cu-doped and pure TiO2 under visible light.
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Ilkhechi, N.N., Kaleji, B.K., Salahi, E. et al. Comparison of optical and structural properties of Cu doped and Cu/Zr co-doped TiO2 nanopowders calcined at various temperatures. J Sol-Gel Sci Technol 74, 765–773 (2015). https://doi.org/10.1007/s10971-015-3661-0
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DOI: https://doi.org/10.1007/s10971-015-3661-0