Ternary BiVO4/NiS/Au nanocomposites with efficient charge separations for enhanced visible light photocatalytic performance
| Autor: | You Yang, Yu Li, Bin Wen, Zixun Fang, Guang Cong Zhang, Shoufeng Tang, Deling Yuan, Ming Xu, Jianmin Gu, Jinling Zhong |
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| Rok vydání: | 2019 |
| Předmět: |
Pollutant
Materials science Nanocomposite General Chemical Engineering 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Mass spectrometry 01 natural sciences Industrial and Manufacturing Engineering Hydrothermal circulation 0104 chemical sciences Chemical engineering Photocatalysis Environmental Chemistry Degradation (geology) 0210 nano-technology Ternary operation Photodegradation |
| Zdroj: | Chemical Engineering Journal. 375:122093 |
| ISSN: | 1385-8947 |
| Popis: | The design and synthesis of efficient photocatalysts for organic pollutant degradation has been regarded as a hopeful approach for environmental protection and remediation. Herein, ternary BiVO4/NiS/Au nanocomposites are successfully synthesized via a simple two-step hydrothermal and photo-reduction method for organic pollutant degradation based on efficient charge separations. Taking the merits of electron collector property of Au and advantages of formed p-n junction between NiS and BiVO4, the prepared BiVO4/NiS/Au composites shows remarkable improvement of organic pollutant degradation compared with pure BiVO4 photocatalyst or binary composites (BiVO4/NiS or BiVO4/Au). Noticeably, the photodegradation efficiency of the optimal ternary BiVO4/NiS/Au composites toward tetracycline (TC) is 4.25 times higher than pure BiVO4. A possible mechanism and degradation pathway for TC was proposed based on the trapping experiments and liquid chromatography–mass spectrometry (LC–MS) analysis. |
| Databáze: | OpenAIRE |
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