In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement
The hot electron transition of noble materials to catalysis accelerated by localized surface plasmon resonances (LSPRs) was detected by in situ irradiated X-ray photoelectron spectroscopy (ISI-XPS) in this article. This paper synthesized an Ag Nanowire (AgNW) @ WS2 core-shell structure, with an ultr...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-03-01
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| Series: | Journal of Materiomics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847820304962 |
| _version_ | 1797760056013357056 |
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| author | Shen-wei Bai Hui Mei Wei-zhao Huang Ming-gang Zhang Lai-fei Cheng |
| author_facet | Shen-wei Bai Hui Mei Wei-zhao Huang Ming-gang Zhang Lai-fei Cheng |
| author_sort | Shen-wei Bai |
| collection | DOAJ |
| description | The hot electron transition of noble materials to catalysis accelerated by localized surface plasmon resonances (LSPRs) was detected by in situ irradiated X-ray photoelectron spectroscopy (ISI-XPS) in this article. This paper synthesized an Ag Nanowire (AgNW) @ WS2 core-shell structure, with an ultra-thin shell of WS2 (3 ∼ 7 nm), and characterized its photocatalytic properties. The AgNW@WS2 core-shell structure exhibited different surface-enhanced Raman spectroscopy (SERS) effects by changing shell thickness, indicating that the effect of AgNW could be controlled by WS2 shell. Furthermore, the hydrogen production of AgNW@WS2 could reach to 356% of that of pure WS2. The hot electrons arising from the LSPRs effect broke through the Schottky barrier between WS2 and AgNW and transferred to the WS2 shell, whose photocatalytic effect was thus enhanced. In addition, when the LSPRs effect was intensified by reducing the shell thickness, the hot electron transition of noble materials to catalysis was accelerated. |
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| format | Article |
| id | doaj.art-3a8d33c3fd75457aa3d1030318a2caf1 |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T18:53:21Z |
| publishDate | 2021-03-01 |
| publisher | Elsevier |
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| series | Journal of Materiomics |
| spelling | doaj.art-3a8d33c3fd75457aa3d1030318a2caf12023-08-02T07:02:51ZengElsevierJournal of Materiomics2352-84782021-03-0172320327In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancementShen-wei Bai0Hui Mei1Wei-zhao Huang2Ming-gang Zhang3Lai-fei Cheng4Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR China; School of Science, Xi’an Polytechnic University, Xi’an, Shaanxi, 710048, PR ChinaScience and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR China; Corresponding author.Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR ChinaScience and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR ChinaScience and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR ChinaThe hot electron transition of noble materials to catalysis accelerated by localized surface plasmon resonances (LSPRs) was detected by in situ irradiated X-ray photoelectron spectroscopy (ISI-XPS) in this article. This paper synthesized an Ag Nanowire (AgNW) @ WS2 core-shell structure, with an ultra-thin shell of WS2 (3 ∼ 7 nm), and characterized its photocatalytic properties. The AgNW@WS2 core-shell structure exhibited different surface-enhanced Raman spectroscopy (SERS) effects by changing shell thickness, indicating that the effect of AgNW could be controlled by WS2 shell. Furthermore, the hydrogen production of AgNW@WS2 could reach to 356% of that of pure WS2. The hot electrons arising from the LSPRs effect broke through the Schottky barrier between WS2 and AgNW and transferred to the WS2 shell, whose photocatalytic effect was thus enhanced. In addition, when the LSPRs effect was intensified by reducing the shell thickness, the hot electron transition of noble materials to catalysis was accelerated.http://www.sciencedirect.com/science/article/pii/S2352847820304962Hot electron transferLocalized surface plasmon resonances (LSPRs)Photocatalytic hydrogen productionHeterostructure |
| spellingShingle | Shen-wei Bai Hui Mei Wei-zhao Huang Ming-gang Zhang Lai-fei Cheng In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement Journal of Materiomics Hot electron transfer Localized surface plasmon resonances (LSPRs) Photocatalytic hydrogen production Heterostructure |
| title | In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement |
| title_full | In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement |
| title_fullStr | In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement |
| title_full_unstemmed | In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement |
| title_short | In situ irradiated X-ray photoelectron spectroscopy on Ag-WS2 heterostructure for hydrogen production enhancement |
| title_sort | in situ irradiated x ray photoelectron spectroscopy on ag ws2 heterostructure for hydrogen production enhancement |
| topic | Hot electron transfer Localized surface plasmon resonances (LSPRs) Photocatalytic hydrogen production Heterostructure |
| url | http://www.sciencedirect.com/science/article/pii/S2352847820304962 |
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