Yang Lin, Wenxi Zhang, Yanjie Lv, Yihe Zhao, Hongtao Cui, Jing Sun, Xiao Li, Dongling Zhou and Zhongmin Su
{"title":"镧系金属有机框架作为化学和温度的多功能传感器","authors":"Yang Lin, Wenxi Zhang, Yanjie Lv, Yihe Zhao, Hongtao Cui, Jing Sun, Xiao Li, Dongling Zhou and Zhongmin Su","doi":"10.1039/D5CE00382B","DOIUrl":null,"url":null,"abstract":"<p >Finding simple and effective methods to detect pollutants in the environment has always been a topic of concern. In this study, the application of a conjugated amide tetracarboxylic acid ligand, namely, 5,5′-((pyridine-2,6-dicarbonyl)bis(azadiyl)diterephthalic acid (PDAI), in fluorescence sensing was investigated for the first time. Two two-dimensional isomorphic rare earth metal–organic frameworks, with the general formula [M–(PDAI)–(H<small><sub>2</sub></small>O)] (M = Tb for <strong>CUST-923</strong>, Eu for <strong>CUST-924</strong>), were constructed under solvothermal conditions, and they exhibited strong luminescence and good water–acid–base stability. <strong>CUST-923</strong> and <strong>CUST-924</strong> displayed highly selective recognition ability for Fe<small><sup>3+</sup></small>, Cr<small><sub>2</sub></small>O<small><sub>7</sub></small><small><sup>2−</sup></small>, CrO<small><sub>4</sub></small><small><sup>2−</sup></small> and tetracycline (TCH). In addition, the mixed lanthanide metal–organic framework Eu<small><sub>0.1</sub></small>Tb<small><sub>0.9</sub></small>–PDAI could be used as a temperature sensing material over a wide temperature range, with a maximum relative sensitivity of 2.30% K<small><sup>−1</sup></small> at 413 K. This work demonstrates the potential of lanthanide metal–organic frameworks as multifunctional sensors for detecting pollutants and manufacturing fluorescence thermometers.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 25","pages":" 4351-4359"},"PeriodicalIF":2.6000,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Lanthanide metal–organic frameworks as multifunctional sensors for chemicals and temperature†\",\"authors\":\"Yang Lin, Wenxi Zhang, Yanjie Lv, Yihe Zhao, Hongtao Cui, Jing Sun, Xiao Li, Dongling Zhou and Zhongmin Su\",\"doi\":\"10.1039/D5CE00382B\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Finding simple and effective methods to detect pollutants in the environment has always been a topic of concern. In this study, the application of a conjugated amide tetracarboxylic acid ligand, namely, 5,5′-((pyridine-2,6-dicarbonyl)bis(azadiyl)diterephthalic acid (PDAI), in fluorescence sensing was investigated for the first time. Two two-dimensional isomorphic rare earth metal–organic frameworks, with the general formula [M–(PDAI)–(H<small><sub>2</sub></small>O)] (M = Tb for <strong>CUST-923</strong>, Eu for <strong>CUST-924</strong>), were constructed under solvothermal conditions, and they exhibited strong luminescence and good water–acid–base stability. <strong>CUST-923</strong> and <strong>CUST-924</strong> displayed highly selective recognition ability for Fe<small><sup>3+</sup></small>, Cr<small><sub>2</sub></small>O<small><sub>7</sub></small><small><sup>2−</sup></small>, CrO<small><sub>4</sub></small><small><sup>2−</sup></small> and tetracycline (TCH). In addition, the mixed lanthanide metal–organic framework Eu<small><sub>0.1</sub></small>Tb<small><sub>0.9</sub></small>–PDAI could be used as a temperature sensing material over a wide temperature range, with a maximum relative sensitivity of 2.30% K<small><sup>−1</sup></small> at 413 K. This work demonstrates the potential of lanthanide metal–organic frameworks as multifunctional sensors for detecting pollutants and manufacturing fluorescence thermometers.</p>\",\"PeriodicalId\":70,\"journal\":{\"name\":\"CrystEngComm\",\"volume\":\" 25\",\"pages\":\" 4351-4359\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-06-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"CrystEngComm\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2025/ce/d5ce00382b\",\"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":"CrystEngComm","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/ce/d5ce00382b","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Lanthanide metal–organic frameworks as multifunctional sensors for chemicals and temperature†
Finding simple and effective methods to detect pollutants in the environment has always been a topic of concern. In this study, the application of a conjugated amide tetracarboxylic acid ligand, namely, 5,5′-((pyridine-2,6-dicarbonyl)bis(azadiyl)diterephthalic acid (PDAI), in fluorescence sensing was investigated for the first time. Two two-dimensional isomorphic rare earth metal–organic frameworks, with the general formula [M–(PDAI)–(H2O)] (M = Tb for CUST-923, Eu for CUST-924), were constructed under solvothermal conditions, and they exhibited strong luminescence and good water–acid–base stability. CUST-923 and CUST-924 displayed highly selective recognition ability for Fe3+, Cr2O72−, CrO42− and tetracycline (TCH). In addition, the mixed lanthanide metal–organic framework Eu0.1Tb0.9–PDAI could be used as a temperature sensing material over a wide temperature range, with a maximum relative sensitivity of 2.30% K−1 at 413 K. This work demonstrates the potential of lanthanide metal–organic frameworks as multifunctional sensors for detecting pollutants and manufacturing fluorescence thermometers.