Notice of RetractionPerformance of La-CuO/TiO2 nanoparticles prepared for photoconversion of CO2

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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Various loading amount of La-CuO/TiO₂ were synthesized via a one step sol-gel process. The crystal structure and chemical properties were characterized using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). XRD analysis revealed that two characteristic peaks at 35.54° and 38.76° according to cubic CuO were observed in the X-ray diffraction patterns of La-CuO/TiO₂. Ti⁴⁺, O_lat into TiO₂ crystal lattice and Cu²⁺ were determined using XPS. The synthesized La-CuO/TiO₂ was applied to the CO₂ photoconversion and the yield of the major product, formaldehyde, was used to evaluate the photocatalytic performance. The 0.1wt.%La-CuO/TiO₂ had the highest photocatalytic activity, and the yield of formaldehyde achieved 953.53 μmol/g·cat. after 6 h of UV illumination. Both the loading of lanthanum and composition of CuO were beneficial to improve the photoefficiency of the catalysts.