{"title":"增强含有 S 杂原子的共价三嗪框架在光催化氢气进化中的作用：复合 PEG 的作用","authors":"Chan Yao, Shuhao Wang, Yixuan Zha, Yanhong Xu","doi":"10.1039/d4nj01870b","DOIUrl":null,"url":null,"abstract":"Covalent triazine frameworks (CTFs) containing S heteroatom are promising materials for applications in photocatalysis due to their donor-acceptor-type structures, which can improve the mobility of carriers in polymers. Herein, a series of composites (TTBT-COF@PEGx, X = 10, 20, and 30) were prepared based on CTF containing S heteroatoms and polyethylene glycol (PEG) by a two-step reaction. The results show that the photocatalytic hydrogen evolution rate of TTBT-COF@PEG30 is 1.51 times that of pristine TTBT-COF. The significantly improvement was attribute to PEG in the pores, which results in stable layered structure, reduced distortion and deformation of the skeleton, and rapid separation and transportation of photogenerated electron-holes.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of covalent triazine framework containing S heteroatom for photocatalytic hydrogen evolution: The role of composite PEG\",\"authors\":\"Chan Yao, Shuhao Wang, Yixuan Zha, Yanhong Xu\",\"doi\":\"10.1039/d4nj01870b\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Covalent triazine frameworks (CTFs) containing S heteroatom are promising materials for applications in photocatalysis due to their donor-acceptor-type structures, which can improve the mobility of carriers in polymers. Herein, a series of composites (TTBT-COF@PEGx, X = 10, 20, and 30) were prepared based on CTF containing S heteroatoms and polyethylene glycol (PEG) by a two-step reaction. The results show that the photocatalytic hydrogen evolution rate of TTBT-COF@PEG30 is 1.51 times that of pristine TTBT-COF. The significantly improvement was attribute to PEG in the pores, which results in stable layered structure, reduced distortion and deformation of the skeleton, and rapid separation and transportation of photogenerated electron-holes.\",\"PeriodicalId\":95,\"journal\":{\"name\":\"New Journal of Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Journal of Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1039/d4nj01870b\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4nj01870b","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
含有 S 杂原子的共价三嗪框架（CTFs）因其供体-受体型结构可提高载流子在聚合物中的流动性，而成为光催化领域具有应用前景的材料。本文以含 S 杂原子的 CTF 和聚乙二醇（PEG）为基础，通过两步反应制备了一系列复合材料（TTBT-COF@PEGx，X = 10、20 和 30）。结果表明，TTBT-COF@PEG30 的光催化氢进化率是原始 TTBT-COF 的 1.51 倍。这一明显改善归功于孔隙中的 PEG，它能形成稳定的层状结构，减少骨架的扭曲和变形，以及光生电子孔的快速分离和传输。
Enhancement of covalent triazine framework containing S heteroatom for photocatalytic hydrogen evolution: The role of composite PEG
Covalent triazine frameworks (CTFs) containing S heteroatom are promising materials for applications in photocatalysis due to their donor-acceptor-type structures, which can improve the mobility of carriers in polymers. Herein, a series of composites (TTBT-COF@PEGx, X = 10, 20, and 30) were prepared based on CTF containing S heteroatoms and polyethylene glycol (PEG) by a two-step reaction. The results show that the photocatalytic hydrogen evolution rate of TTBT-COF@PEG30 is 1.51 times that of pristine TTBT-COF. The significantly improvement was attribute to PEG in the pores, which results in stable layered structure, reduced distortion and deformation of the skeleton, and rapid separation and transportation of photogenerated electron-holes.
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