Layered Ti3C2 MXene modified two-dimensional Bi2WO6 composites with enhanced visible light photocatalytic performance
| Autor: | Danxia Zhao, Chun Cai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
In situ
Materials science business.industry 02 engineering and technology Electron Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Tetracycline Hydrochloride chemistry.chemical_compound Adsorption Semiconductor chemistry Chemical engineering Specific surface area Materials Chemistry Rhodamine B General Materials Science 0210 nano-technology business |
| Zdroj: | Materials Chemistry Frontiers. 3:2521-2528 |
| ISSN: | 2052-1537 |
| Popis: | In this study, Ti3C2 with excellent electron conductivity modified 2D Bi2WO6 was successfully prepared through an in situ growth route. Under LED light illumination, the removal ratios of rhodamine B and tetracycline hydrochloride were 99.9% and 97% on the optimized Bi2WO6/Ti3C2 within 20 min and 60 min, which was much higher than that of Bi2WO6. This arises from: (i) the incorporation of Ti3C2 improves the specific surface area of Bi2WO6, which increases the adsorption capacity of Bi2WO6/Ti3C2 hybrids for pollutants; (ii) Ti3C2 acted as an electron mediator effectively enhancing the separation of photo-induced charges; (iii) the close interfacial contact of the Bi2WO6/Ti3C2 hybrid promotes interfacial charge transfer abilities. In addition, this study further demonstrates the potential to couple Ti3C2 with other photosensitive semiconductors to improve the photocatalytic degradation activity. |
| Databáze: | OpenAIRE |
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