Structural, optical, electrical and catalytic properties of precursor solution-aged spray deposited undoped, Zn-doped and Ag-doped CdO thin films
| Autor: | V.S. Nagarethinam, N. Manjula, N. Raja, C. Rajashree, A.R. Balu, K. Usharani, S Balamurugan, M. Suganya |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Band gap Doping 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Mechanics of Materials Electrical resistivity and conductivity Photocatalysis Methyl orange General Materials Science Crystallite Thin film 0210 nano-technology Nuclear chemistry |
| Zdroj: | Bulletin of Materials Science. 43 |
| ISSN: | 0973-7669 0250-4707 |
| Popis: | Photocatalytic performance of precursor solution-aged undoped, Zn-doped CdO (CdO:Zn) and Ag-doped CdO (CdO:Ag) thin films has been reported in this paper. Perfume atomizer is adopted to deposit the films. CdO, CdO:Zn and CdO:Ag thin films exhibit cubic crystal structure. The crystallite size values were 34, 31 and 27 nm, respectively, for the CdO, CdO:Zn and CdO:Ag thin films. In the EDX spectra of the CdO:Zn and CdO:Ag thin films, Zn and Ag were observed along with Cd and O. The CdO:Zn and CdO:Ag thin films exhibit increased transparency and widened band gap values. PL spectra showed peaks related to oxygen vacancies for all the films. Reduced resistivity was evinced for the CdO:Zn and CdO:Ag thin films. The degradation efficiencies of the CdO, CdO:Zn and CdO:Ag thin films against methyl orange after 75 min light exposure were 76.4, 84.3 and 90.4%, respectively. The CdO:Zn and CdO:Ag catalysts exhibit satisfactory stability with better reusable nature and are suitable for the effective treatment of organic toxic dyes. |
| Databáze: | OpenAIRE |
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