Authors: Bensouici F., Bououdina M., Dakhel A.A., Tala-Ighil R., Tounane M., Iratni A., Souier T., Liu S., Cai W.
Author Affiliations: Bensouici, F., Department of Physics, URMPE Unite, UMBB University, Boumerdes, 35000, Algeria; Bououdina, M., Department of Physics, College of Science, University of Bahrain, PO Box 32038, Bahrain; Dakhel, A.A., Department of Physics, College of Science, University of Bahrain, PO Box 32038, Bahrain; Tala-Ighil, R., Department of Physics, URMPE Unite, UMBB University, Boumerdes, 35000, Algeria; Tounane, M., Department of Physics, URMPE Unite, UMBB University, Boumerdes, 35000, Algeria; Iratni, A., Department of Physics, URMPE Unite, UMBB University, Boumerdes, 35000, Algeria; Souier, T., Department of Physics, College of Science, Sultan Qaboos University, PO Box 36, Oman; Liu, S., Key laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Technology, Center for Environmental and Energy Nanomaterials, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China; Cai, W., Key laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Technology, Center for Environmental and Energy Nanomaterials, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China
Publication Date: 2017
Pure and Cu +2 doped TiO 2 thin films have been successfully deposited onto glass substrate by sol–gel dip-coating. The films were annealed at 450 °C for 1 h and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM-EDX), atomic force microscopy (AFM), UV–vis spectrophotometer and photocatalytic degradation of methylene blue. XRD confirmed the presence of two phases at higher Cu concentration; TiO 2 anatase and CuO. AFM analysis showed that the surface roughness increases within increasing Cu content as well as the presence of large aggregates at higher Cu content. SEM observations confirmed the granular structure of the films, and EDX analysis revealed a low solubility limit (effective doping) of Cu into TiO 2 lattice. It was found that the optical band gap energy decreases with increasing Cu content. At constant irradiation time, the photo-degradation of methylene blue rate decreased with increasing concentration of Cu +2 . © 2016 Elsevier B.V.
Eshan2020-11-28T18:54:43+00:00
