Hydrothermal Synthesis of Zn2SnO4/Few-Layer Boron Nitride Nanosheets Hybrids as a Visible-Light-Driven Photocatalyst
| Autor: | Jun-Zhang Su, Kai-Yuan Wang, Hui Li, Jia-Rui Zhang, Yi-Wei Wang, Xiang-Feng Wu, Ze-Hua Zhao, Zuo-Lin Cao, Chen-Xu Zhang, Yi-Jin Wang, Jun-Cheng Pan |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Diffuse reflectance infrared fourier transform 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Hydrothermal circulation 0104 chemical sciences Dielectric spectroscopy chemistry.chemical_compound chemistry Chemical engineering Boron nitride Rhodamine B Photocatalysis Hydrothermal synthesis General Materials Science 0210 nano-technology Visible spectrum |
| Zdroj: | Journal of Wuhan University of Technology-Mater. Sci. Ed.. 34:563-567 |
| ISSN: | 1993-0437 1000-2413 |
| Popis: | Zn2SnO4/few-layer boron nitride nanosheets (FBNNS) hybrids were synthesized via a one-step hydrothermal method. The structures, morphology, optical properties, electron transformation and separation of the as-prepared products were characterized by X-ray diffraction, transmission electrical microscopy, UV-vis diffuse reflectance spectroscopy and electrochemical impedance spectroscopy, respectively. Rhodamine B was used to evaluate the photocatalytic activities of the as-prepared samples under visible light illumination. The photocatalytic mechanism was also explored. Experimental results showed that the degradation efficiency of rhodamine B was firstly increased and then decreased with increasing the usage amount of FBNNS. When it was 9 wt% based on the weight of Zn2SnO4, the degradation efficiency of the as-prepared Zn2SnO4/FBNNS-9 wt% composites reached to the maximum of 97.5% in 180 min, which was higher than 39.2 % of pure Zn2SnO4. Moreover, the holes played mainly active roles in photocatalytic reaction process. In addition, the as-prepared hybrids could enhance the separation efficiency of photoexcited carriers compared to pure Zn2SnO4. |
| Databáze: | OpenAIRE |
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