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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| catal10111294.pdf | 4.52 MB | Adobe PDF | 見る/開く |
| タイトル: | Enhanced Photocatalytic Activity of BiVO4/Bi2S3/SnS2 Heterojunction under Visible Light |
| 著者: | Meng, Sopheak Ogawa, Takaya    https://orcid.org/0000-0001-8273-964X (unconfirmed)Okumura, Hideyuki https://orcid.org/0000-0002-2576-7510 (unconfirmed)Ishihara, Keiichi N. |
| 著者名の別形: | 小川, 敬也 奥村, 英之 石原, 慶一 |
| キーワード: | BiVO4/Bi2S3/SnS2 heterojunction visible light Z-scheme |
| 発行日: | 9-Nov-2020 |
| 出版者: | MDPI AG |
| 誌名: | Catalysts |
| 巻: | 10 |
| 号: | 11 |
| 論文番号: | 1294 |
| 抄録: | Heterojunction photocatalysts have attracted a significant amount of attention due to their advantages over a single photocatalyst and, particularly, their superior spatial charge separation. Herein, the BiVO4/Bi2S3/SnS2 heterojunction was synthesized via solvothermal synthesis with different ratios of BiVO4 to SnS2. The photodegradation rate of the 0.03 BiVO4/SnS2 sample for rhodamine B removal is 2.3 times or 2.9 times greater than that of a single SnS2 or BiVO4, respectively. The chemical bond between photocatalysts is confirmed by X-ray photoelectron spectroscopy (XPS), and the synchronized shift observed in binding energies strongly indicates the electron screening effect at the heterojunction. A Z-scheme model is proposed to explain charge transfer pathway in the system, in which the formation of Bi2S3 plays a crucial role in the enhanced photocatalytic performance of the heterojunction. |
| 著作権等: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| URI: | http://hdl.handle.net/2433/259222 |
| DOI(出版社版): | 10.3390/catal10111294 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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