Lorena Gudiño, Manuel Peñas-Garzón, Juan J. Rodriguez, Jorge Bedia, Carolina Belver
{"title":"太阳照射下制氢过程中 UiO-66-NH2 的光化学转化","authors":"Lorena Gudiño, Manuel Peñas-Garzón, Juan J. Rodriguez, Jorge Bedia, Carolina Belver","doi":"10.1016/j.catcom.2024.106858","DOIUrl":null,"url":null,"abstract":"<div><p>This work reports for the first time the photochemical transformation suffered by the UiO-66-NH<sub>2</sub> MOF during hydrogen production under solar irradiation using different scavengers. Triethanolamine caused the complete dissolution of the MOF, while Na<sub>2</sub>S/Na<sub>2</sub>SO<sub>3</sub> transformed the UiO-66-NH<sub>2</sub> into a novel Zr-based material characterized by an amorphous structure with a production rate of 0.439 μmol H<sub>2</sub>·g<sub>cat</sub><sup>−1</sup>·h<sup>−1</sup>. The MOF-derived material maintained its performance during long-term on-stream experiments thanks to the electron transfer from the sulfide/sulfite ions to the valence band of the photocatalyst. However, significant doubts about the stability of UiO-66NH<sub>2</sub> and other MOFs in the photocatalytic generation of hydrogen are arisen.</p></div>","PeriodicalId":263,"journal":{"name":"Catalysis Communications","volume":"187 ","pages":"Article 106858"},"PeriodicalIF":3.4000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1566736724000189/pdfft?md5=37d80d2d01a5ffe2798f585c5847a3c5&pid=1-s2.0-S1566736724000189-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Photochemical transformation of UiO-66-NH2 during hydrogen generation under solar irradiation\",\"authors\":\"Lorena Gudiño, Manuel Peñas-Garzón, Juan J. Rodriguez, Jorge Bedia, Carolina Belver\",\"doi\":\"10.1016/j.catcom.2024.106858\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This work reports for the first time the photochemical transformation suffered by the UiO-66-NH<sub>2</sub> MOF during hydrogen production under solar irradiation using different scavengers. Triethanolamine caused the complete dissolution of the MOF, while Na<sub>2</sub>S/Na<sub>2</sub>SO<sub>3</sub> transformed the UiO-66-NH<sub>2</sub> into a novel Zr-based material characterized by an amorphous structure with a production rate of 0.439 μmol H<sub>2</sub>·g<sub>cat</sub><sup>−1</sup>·h<sup>−1</sup>. The MOF-derived material maintained its performance during long-term on-stream experiments thanks to the electron transfer from the sulfide/sulfite ions to the valence band of the photocatalyst. However, significant doubts about the stability of UiO-66NH<sub>2</sub> and other MOFs in the photocatalytic generation of hydrogen are arisen.</p></div>\",\"PeriodicalId\":263,\"journal\":{\"name\":\"Catalysis Communications\",\"volume\":\"187 \",\"pages\":\"Article 106858\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2024-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1566736724000189/pdfft?md5=37d80d2d01a5ffe2798f585c5847a3c5&pid=1-s2.0-S1566736724000189-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Communications\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1566736724000189\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1566736724000189","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Photochemical transformation of UiO-66-NH2 during hydrogen generation under solar irradiation
This work reports for the first time the photochemical transformation suffered by the UiO-66-NH2 MOF during hydrogen production under solar irradiation using different scavengers. Triethanolamine caused the complete dissolution of the MOF, while Na2S/Na2SO3 transformed the UiO-66-NH2 into a novel Zr-based material characterized by an amorphous structure with a production rate of 0.439 μmol H2·gcat−1·h−1. The MOF-derived material maintained its performance during long-term on-stream experiments thanks to the electron transfer from the sulfide/sulfite ions to the valence band of the photocatalyst. However, significant doubts about the stability of UiO-66NH2 and other MOFs in the photocatalytic generation of hydrogen are arisen.
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Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.
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