Synthesis, Characterization and Photocatalytic Activity of Copper (II)-Doped Titanium Dioxide Powders

Abstract:

Different concentration of copper (II) doped TiO₂ photocatalyst powders were synthesized through the sol-gel method and characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET)-specific surface area, transmission electron microscopy (TEM), and Ultraviolet–Visible (UV-Vis) spectroscopy. Cu²⁺-doping in the TiO₂ promotes the particle growth, decreases the specific surface areas of powders, extends the absorption to visible light regions, and exhibits the vis-photocatalytic activity for methylene blue (MB) degradation. Appropriate content of Cu²⁺-doping is an effective means to improve the photocatalytic activity of TiO₂ for MB degradation under visible light irradiation.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 728-731
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.728
• Online since: December 2011
• Authors: Wen Churng Lin, Wein Duo Yang
• Keywords: Copper-Doped TiO₂, Photocatalytic, Sol-Gel (SG), Visible Light

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