Constructing g-C3N4/SnO2 S-scheme heterojunctions for efficient photocatalytic NO removal and low NO2 generation
The facile fabrication of g-C3N4/SnO2 S-scheme heterojunctions for photocatalytic removal of NO under visible light is reported. Optical and electrochemical investigations indicate the formation of these heterojunctions that enable bending at the interface of g-C3N4 and SnO2 and give rise to an efficient separation. A high photocatalytic 500-ppb NO removal performance of 35% and low NO2 generation of 2% are realized after 30 min of visible light irradiation upon the g-C3N4/SnO2 heterojunction with 30% of g-C3N4 addition. In contrast, the bare g-C3N4 extensively produces NO2 greater than 12% compared to 30% from the g-C3N4 sample. This study also shows that the g-C3N4/SnO2 heterojunction is a stable catalyst system and superoxide radicals play a crucial role in the photocatalytic NO removal. Since the preparation of the g-C3N4/SnO2 heterojunction reported in this work is straightforward, it can potentially enable the preparation of highly robust visible-light-driven photocatalysts to remove NO pollution..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:6 |
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| Enthalten in: |
Journal of Science: Advanced Materials and Devices - 6(2021), 4, Seite 551-559 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Pham Van Viet [VerfasserIn] |
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| Links: |
doi.org [kostenfrei] |
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| Themen: |
G-C3N4/SnO2 |
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| doi: |
10.1016/j.jsamd.2021.07.005 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ062154435 |
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| 520 | |a The facile fabrication of g-C3N4/SnO2 S-scheme heterojunctions for photocatalytic removal of NO under visible light is reported. Optical and electrochemical investigations indicate the formation of these heterojunctions that enable bending at the interface of g-C3N4 and SnO2 and give rise to an efficient separation. A high photocatalytic 500-ppb NO removal performance of 35% and low NO2 generation of 2% are realized after 30 min of visible light irradiation upon the g-C3N4/SnO2 heterojunction with 30% of g-C3N4 addition. In contrast, the bare g-C3N4 extensively produces NO2 greater than 12% compared to 30% from the g-C3N4 sample. This study also shows that the g-C3N4/SnO2 heterojunction is a stable catalyst system and superoxide radicals play a crucial role in the photocatalytic NO removal. Since the preparation of the g-C3N4/SnO2 heterojunction reported in this work is straightforward, it can potentially enable the preparation of highly robust visible-light-driven photocatalysts to remove NO pollution. | ||
| 650 | 4 | |a S-Scheme photocatalyst | |
| 650 | 4 | |a g-C3N4/SnO2 | |
| 650 | 4 | |a NO removal | |
| 650 | 4 | |a NO2 generation | |
| 650 | 4 | |a Visible-light-driven photocatalysis | |
| 653 | 0 | |a Materials of engineering and construction. Mechanics of materials | |
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| 700 | 0 | |a Dai-Phat Bui |e verfasserin |4 aut | |
| 700 | 0 | |a Le Viet Hai |e verfasserin |4 aut | |
| 700 | 0 | |a Minh-Thuan Pham |e verfasserin |4 aut | |
| 700 | 0 | |a Sheng-Jie You |e verfasserin |4 aut | |
| 700 | 0 | |a Cao Minh Thi |e verfasserin |4 aut | |
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