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Solar photodegradation of Rhodamine B dye by Cu2O/TiO2 heterostructure: experimental and computational studies of degradation and toxicity by L. Messaadia; S. Kiamouche; H. Lahmar; R. Masmoudi; H. Boulahbel; M. Trari; M. Benamira is a Chemistry article available to read on EtoBox.
What is Solar photodegradation of Rhodamine B dye by Cu2O/TiO2 heterostructure: experimental and computational studies of degradation and toxicity about?
## Context and results In this study, the heterojunction Cu 2 O/TiO 2 is used for the degradation of a cationic dye, Rhodamine B, under solar light irradiation over a wide pH range. The physical and optical properties of both semiconductors Cu 2 O and TiO 2 are correlated with the photo-electrochemical characterization to establish the energy diagram of the heterojunction Cu 2 O/TiO 2 . X-ray diffraction, UV-visible, SEM, EDX, and BET analyses are conducted for both photocatalysts. The band gap (E g ) of 3.26 eV is obtained for TiO 2 with an indirect optical transition. In the case of Cu 2 O, the transition is directly allowed at 2.05 eV. According to the BET analysis, the specific surface area of TiO 2 particles is higher (82.65 m 2 g -1 ) than that of Cu 2 O (29.81 m 2 g -1 ). The flat band potentials, determined from the Mott-Schottky plots, are 0.3 and -0.32 V SCE for TiO 2 and Cu 2 O, respectively. The photocatalytic activity is directly proportional to the mass ratio, and the best result is obtained for the mass ratio 1:1 of Cu 2 O/TiO 2 . Computational and theoretical techniques Furthermore, a theoretical study is conducted by using density functional theory to optimize the
Who reads Solar photodegradation of Rhodamine B dye by Cu2O/TiO2 heterostructure: experimental and computational studies of degradation and toxicity?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- L. Messaadia; S. Kiamouche; H. Lahmar; R. Masmoudi; H. Boulahbel; M. Trari; M. Benamira
- Publisher
- Springer Science and Business Media LLC
- Published
- 2023
- Language
- EN
- Field
- Chemistry (Physical Sciences)