Notice of RetractionPhotocatalytic Activity of TiO2 and TiO2-CuZSM-5 Composite Prepared by Solid State Dispersion

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

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The copper exchanged CuZSM-5 was used as support for TiO₂ through solid state dispersion. Photocatalytic activity and adsorption ability of TiO₂, and the function of CuZSM-5 to the photocatalytic properties of TiO₂ were investigated. The photocatalytic degradation process was conducted after adsorption equilibrium was reached. As TiO₂ concentration increased from 50 mg/1 to 250 mg/1, photocatalytic methyl orange degradation rate also increased from 28.6% to 54.6%. The concentration of TiO₂ in the experiments was set as 250 mg/1. TiO₂-CuZSM-5 composite prepared by solid state dispersion was mixed at different TiO₂ and CuZSM-5 ratios. The TiO₂-CuZSM 5 composite had low photocatalytic activity compared with pure TiO₂. The introduction of copper ion into TiO₂ photocatalyst might have negative effect on the performance of TiO₂.