{"title":"载流子迁移增强型 JANUS SXSiN2(X = 铬、钼、钨)单层的光催化性能","authors":"Wei Cai, Yuhua Chi, Mengxin Ji, Qian Zhang, Hao Ren, Houyu Zhu, Wen Zhao, Wenyue Guo","doi":"10.1007/s10562-024-04818-4","DOIUrl":null,"url":null,"abstract":"<div><p>Efficient catalysts for separating electron–hole pairs are crucial for improving the quantum yield and activity of photocatalysts. This study systematically investigates the properties and performance of monolayers of Janus SXSiN<sub>2</sub> (X = Cr, Mo, W) using the first-principles computational methods. The research findings suggest that biaxial strain can induce an indirect-to-direct bandgap transition in Janus SXSiN<sub>2</sub> and can also modulate the bandgap and band edge positions. Surface vacancy defects play a critical role in enhancing the charge carrier separation ability of Janus SXSiN<sub>2</sub>, leading to remarkable photocatalytic performance. Moreover, the synergistic effect of biaxial strain and vacancy defects can significantly improve the catalytic performance for the HER. This study provides a theoretical foundation for further development of efficient two-dimensional Janus photocatalysts.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div><div><p>Biaxial strain can modulate the bandgap and band edge positions. Surface vacancy defects play a critical role in enhancing the charge carrier separation ability. Janus SXSiN2 exhibits excellent photocatalytic performance for the HER reaction due to the synergistic effects of strain and vacancy defects.</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Photocatalytic Performance of JANUS SXSiN2 (X = Cr, Mo, W) Monolayers with Enhanced Carrier Migration\",\"authors\":\"Wei Cai, Yuhua Chi, Mengxin Ji, Qian Zhang, Hao Ren, Houyu Zhu, Wen Zhao, Wenyue Guo\",\"doi\":\"10.1007/s10562-024-04818-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Efficient catalysts for separating electron–hole pairs are crucial for improving the quantum yield and activity of photocatalysts. This study systematically investigates the properties and performance of monolayers of Janus SXSiN<sub>2</sub> (X = Cr, Mo, W) using the first-principles computational methods. The research findings suggest that biaxial strain can induce an indirect-to-direct bandgap transition in Janus SXSiN<sub>2</sub> and can also modulate the bandgap and band edge positions. Surface vacancy defects play a critical role in enhancing the charge carrier separation ability of Janus SXSiN<sub>2</sub>, leading to remarkable photocatalytic performance. Moreover, the synergistic effect of biaxial strain and vacancy defects can significantly improve the catalytic performance for the HER. This study provides a theoretical foundation for further development of efficient two-dimensional Janus photocatalysts.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div><div><p>Biaxial strain can modulate the bandgap and band edge positions. Surface vacancy defects play a critical role in enhancing the charge carrier separation ability. Janus SXSiN2 exhibits excellent photocatalytic performance for the HER reaction due to the synergistic effects of strain and vacancy defects.</p></div></div></figure></div></div>\",\"PeriodicalId\":508,\"journal\":{\"name\":\"Catalysis Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-09-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10562-024-04818-4\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-024-04818-4","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
The Photocatalytic Performance of JANUS SXSiN2 (X = Cr, Mo, W) Monolayers with Enhanced Carrier Migration
Efficient catalysts for separating electron–hole pairs are crucial for improving the quantum yield and activity of photocatalysts. This study systematically investigates the properties and performance of monolayers of Janus SXSiN2 (X = Cr, Mo, W) using the first-principles computational methods. The research findings suggest that biaxial strain can induce an indirect-to-direct bandgap transition in Janus SXSiN2 and can also modulate the bandgap and band edge positions. Surface vacancy defects play a critical role in enhancing the charge carrier separation ability of Janus SXSiN2, leading to remarkable photocatalytic performance. Moreover, the synergistic effect of biaxial strain and vacancy defects can significantly improve the catalytic performance for the HER. This study provides a theoretical foundation for further development of efficient two-dimensional Janus photocatalysts.
期刊介绍:
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.