Cost-effective fabrication of (g-C3N4 + Mo) added photostable ZnO thin films for enhanced visible light responsive photocatalytic dye degradation
| Autor: | E. Sindhuja, K. Shantha Seelan, K. Ravichandran |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Mechanical Engineering Doping chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Reaction rate constant chemistry Mechanics of Materials Molybdenum Rhodamine B Photocatalysis General Materials Science Thin film 0210 nano-technology Methylene blue Nuclear chemistry Visible spectrum |
| Zdroj: | Materials Research Bulletin. 103:299-308 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2018.03.007 |
| Popis: | The photocatalytic activity of ZnO:Mo/GCN (ZnO:Molybdenum/g-C3N4) thin films deposited using a simple cost-effective jet nebulizer spray pyrolysis technique with different Mo doping concentrations (1,2 and 3 at.%) was studied. The photocatalytic degradation test was carried out against Methylene blue (MB) and Rhodamine B (RhB) dyes under visible light. It is found that thin film of ZnO:Mo/GCN with 1 at.% of Mo exhibits superior photocatalytic efficiency compared with the other samples. The degradation rate constant of this sample is 0.0727 and 0.0268 min−1 for the tested MB and RhB dyes, respectively which are nearly two times and four times greater than the respective rate constant values of pristine ZnO. The mechanism involved in the enhanced photocatalytic activity is addressed with the help of obtained results. The properties of the deposited samples are correlated appropriately with the photocatalytic efficiency of the samples. The photostability of the prepared catalysts is tested experimentally. |
| Databáze: | OpenAIRE |
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