Novel 2D B2S3 as a metal-free photocatalyst for water splitting
| العنوان: | Novel 2D B2S3 as a metal-free photocatalyst for water splitting |
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| المؤلفون: | Wenkai Zhao, Bin Cui, Chuan-Lu Yang, Dongqing Zou, Xiaoteng Li, Yuqing Xu |
| المصدر: | Nanotechnology. 32:225401 |
| بيانات النشر: | IOP Publishing, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Electron mobility, Materials science, business.industry, Band gap, Mechanical Engineering, Bioengineering, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Semiconductor, Mechanics of Materials, Photocatalysis, Water splitting, Optoelectronics, General Materials Science, Electrical and Electronic Engineering, 0210 nano-technology, Mesoporous material, business, Photocatalytic water splitting, Hydrogen production |
| الوصف: | Metal-free semiconductors with desirable characteristics have recently gained great attention in the field of hydrogen generation. The non-metal material B2S3 has two phases, hexagonal B2S3 (h-B2S3) and orthorhombic B2S3 (o-B2S3), which compose a novel class of 2D materials. Both h-B2S3 and o-B2S3 monolayers are direct semiconductors with bandgaps of 2.89 and 3.77 eV by the Heyd-Scuserria-Ernzerhof (HSE) function, respectively. Under appropriate uniaxial strain (1%), the bandgap of h-B2S3 can be decreased to 2.8 eV. The carrier mobility can reach 1160 cm2 V−1 s−1, supporting the fast migration of photo-induced carriers. Most importantly, the band edges of both h-B2S3 and o-B2S3 cover the reduction and oxidation levels for water splitting. We explore the process of photocatalytic water splitting on h-B2S3 monolayers by analyzing the feasibility of the decomposition of H2O and the generation of H2. The results indicate that the special mesoporous structure of B2S3 is helpful for photocatalytic hydrogen production. The new nanomaterial, B2S3, offers great promise as a metal-free photocatalyst due to its tunable bandgaps, its useful band edges, and its other excellent electronic properties. |
| تدمد: | 1361-6528 0957-4484 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::3c71111e09d507eb16608071d444e9dfTest https://doi.org/10.1088/1361-6528/abe787Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........3c71111e09d507eb16608071d444e9df |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616528 09574484 |
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