{"title":"揭示在 Bi2WO6 纳米片上装饰可调硫化铋纳米结构形态的潜力,以提高光电化学性能","authors":"","doi":"10.1016/j.jsamd.2024.100800","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, we used different sulfur sources (thiourea and sodium sulfide) in the hydrothermal vulcanization to create two types of Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> composite materials with different structures. We varied the vulcanization duration to control the degree of vulcanization of the samples. The composites made with sodium sulfide displayed a mix of particles and nanosheets, while those made with thiourea showed nanowires and nanosheets. The choice of sulfur source had a significant impact on the structural characteristics of the composite material. In photoelectrochemical experiments (PEC), the vulcanization-treated Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> composites improved significantly compared to the pristine Bi<sub>2</sub>WO<sub>6</sub> template. In particular, the Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> composite prepared using sodium sulfide precursor for 4 h exhibited the best photocurrent density and the lowest charge transfer interface resistance. The improved performance is attributed to the suitable defect density and a Z-scheme mechanism facilitated by the built-in electric field at the interface, which effectively separated photogenerated carriers, increasing active species and significantly improving the composites' efficiency in PEC reactions.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":null,"pages":null},"PeriodicalIF":6.7000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unveiling the potential of decorating tunable morphology of bismuth sulfide nanostructures on the Bi2WO6 nanosheets for enhanced photoelectrochemical performance\",\"authors\":\"\",\"doi\":\"10.1016/j.jsamd.2024.100800\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In this study, we used different sulfur sources (thiourea and sodium sulfide) in the hydrothermal vulcanization to create two types of Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> composite materials with different structures. We varied the vulcanization duration to control the degree of vulcanization of the samples. The composites made with sodium sulfide displayed a mix of particles and nanosheets, while those made with thiourea showed nanowires and nanosheets. The choice of sulfur source had a significant impact on the structural characteristics of the composite material. In photoelectrochemical experiments (PEC), the vulcanization-treated Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> composites improved significantly compared to the pristine Bi<sub>2</sub>WO<sub>6</sub> template. In particular, the Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> composite prepared using sodium sulfide precursor for 4 h exhibited the best photocurrent density and the lowest charge transfer interface resistance. The improved performance is attributed to the suitable defect density and a Z-scheme mechanism facilitated by the built-in electric field at the interface, which effectively separated photogenerated carriers, increasing active species and significantly improving the composites' efficiency in PEC reactions.</div></div>\",\"PeriodicalId\":17219,\"journal\":{\"name\":\"Journal of Science: Advanced Materials and Devices\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.7000,\"publicationDate\":\"2024-10-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Science: Advanced Materials and Devices\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S246821792400131X\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Science: Advanced Materials and Devices","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S246821792400131X","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Unveiling the potential of decorating tunable morphology of bismuth sulfide nanostructures on the Bi2WO6 nanosheets for enhanced photoelectrochemical performance
In this study, we used different sulfur sources (thiourea and sodium sulfide) in the hydrothermal vulcanization to create two types of Bi2S3/Bi2WO6 composite materials with different structures. We varied the vulcanization duration to control the degree of vulcanization of the samples. The composites made with sodium sulfide displayed a mix of particles and nanosheets, while those made with thiourea showed nanowires and nanosheets. The choice of sulfur source had a significant impact on the structural characteristics of the composite material. In photoelectrochemical experiments (PEC), the vulcanization-treated Bi2S3/Bi2WO6 composites improved significantly compared to the pristine Bi2WO6 template. In particular, the Bi2S3/Bi2WO6 composite prepared using sodium sulfide precursor for 4 h exhibited the best photocurrent density and the lowest charge transfer interface resistance. The improved performance is attributed to the suitable defect density and a Z-scheme mechanism facilitated by the built-in electric field at the interface, which effectively separated photogenerated carriers, increasing active species and significantly improving the composites' efficiency in PEC reactions.
期刊介绍:
In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research.
Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science.
With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.