Yinxing Jiang, Mei Li, Xinshan Zhao, Yanling Han, Yingmei Zhou, Zhao Li, Lin Tian, Ping Fu, Yan Chen, Jing Li
{"title":"原位合成共轭聚乙烯醇衍生物修饰的 SnS2 纳米片，提高可见光光催化还原六价铬的能力","authors":"Yinxing Jiang, Mei Li, Xinshan Zhao, Yanling Han, Yingmei Zhou, Zhao Li, Lin Tian, Ping Fu, Yan Chen, Jing Li","doi":"10.1007/s11665-024-10067-8","DOIUrl":null,"url":null,"abstract":"<p>The development of high-performance photocatalysts is crucial in addressing water environmental pollution using photocatalytic technology. In this study, CPVA/SnS<sub>2</sub> heterojunctions modified with conjugated polyvinyl alcohol were prepared using water-soluble polyvinyl alcohol. The effects of temperature and CPVA loading amount on the chemical composition, morphology, optical and electrochemical properties, and visible-light photocatalytic reduction of aqueous Cr(VI) performance of CPVA/SnS<sub>2</sub> were evaluated. The results showed that the CPVA was uniformly coated on the surface of SnS<sub>2</sub>, improving the light absorption range and the effective utilization of photogenerated carriers. All CPVA/SnS<sub>2</sub> heterojunctions exhibited enhanced photocatalytic activity compared to bare SnS<sub>2</sub>. The reaction rate for the photocatalytic reduction of Cr(VI) by CPVA/SnS<sub>2</sub>-B (0.034 min<sup>−1</sup>) was 3.46 times higher than that of SnS<sub>2</sub> (0.0098 min<sup>−1</sup>). The photocatalytic mechanism of S-scheme heterojunction for the photocatalytic reduction of Cr(VI) by CPVA/SnS<sub>2</sub> was proposed based on the trapping experiments and electrochemical results. This study provides a straightforward strategy for the construction of efficient photocatalysts.</p>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"5 1","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In Situ Synthesis of Conjugated Polyvinyl Alcohol Derivative-Modified SnS2 Nanosheets with Improved Visible Photocatalytic Reduction of Cr(VI)\",\"authors\":\"Yinxing Jiang, Mei Li, Xinshan Zhao, Yanling Han, Yingmei Zhou, Zhao Li, Lin Tian, Ping Fu, Yan Chen, Jing Li\",\"doi\":\"10.1007/s11665-024-10067-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The development of high-performance photocatalysts is crucial in addressing water environmental pollution using photocatalytic technology. In this study, CPVA/SnS<sub>2</sub> heterojunctions modified with conjugated polyvinyl alcohol were prepared using water-soluble polyvinyl alcohol. The effects of temperature and CPVA loading amount on the chemical composition, morphology, optical and electrochemical properties, and visible-light photocatalytic reduction of aqueous Cr(VI) performance of CPVA/SnS<sub>2</sub> were evaluated. The results showed that the CPVA was uniformly coated on the surface of SnS<sub>2</sub>, improving the light absorption range and the effective utilization of photogenerated carriers. All CPVA/SnS<sub>2</sub> heterojunctions exhibited enhanced photocatalytic activity compared to bare SnS<sub>2</sub>. The reaction rate for the photocatalytic reduction of Cr(VI) by CPVA/SnS<sub>2</sub>-B (0.034 min<sup>−1</sup>) was 3.46 times higher than that of SnS<sub>2</sub> (0.0098 min<sup>−1</sup>). The photocatalytic mechanism of S-scheme heterojunction for the photocatalytic reduction of Cr(VI) by CPVA/SnS<sub>2</sub> was proposed based on the trapping experiments and electrochemical results. This study provides a straightforward strategy for the construction of efficient photocatalysts.</p>\",\"PeriodicalId\":644,\"journal\":{\"name\":\"Journal of Materials Engineering and Performance\",\"volume\":\"5 1\",\"pages\":\"\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Engineering and Performance\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s11665-024-10067-8\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11665-024-10067-8","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
In Situ Synthesis of Conjugated Polyvinyl Alcohol Derivative-Modified SnS2 Nanosheets with Improved Visible Photocatalytic Reduction of Cr(VI)
The development of high-performance photocatalysts is crucial in addressing water environmental pollution using photocatalytic technology. In this study, CPVA/SnS2 heterojunctions modified with conjugated polyvinyl alcohol were prepared using water-soluble polyvinyl alcohol. The effects of temperature and CPVA loading amount on the chemical composition, morphology, optical and electrochemical properties, and visible-light photocatalytic reduction of aqueous Cr(VI) performance of CPVA/SnS2 were evaluated. The results showed that the CPVA was uniformly coated on the surface of SnS2, improving the light absorption range and the effective utilization of photogenerated carriers. All CPVA/SnS2 heterojunctions exhibited enhanced photocatalytic activity compared to bare SnS2. The reaction rate for the photocatalytic reduction of Cr(VI) by CPVA/SnS2-B (0.034 min−1) was 3.46 times higher than that of SnS2 (0.0098 min−1). The photocatalytic mechanism of S-scheme heterojunction for the photocatalytic reduction of Cr(VI) by CPVA/SnS2 was proposed based on the trapping experiments and electrochemical results. This study provides a straightforward strategy for the construction of efficient photocatalysts.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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