Missing-linker engineering of Eu (III)-doped UiO-MOF for enhanced detection of heavy metal ions
文献类型：期刊论文
| 作者 | Du, T; Wang, J; Zhang, L ; Wang, SC; Yang, CY; Xie, LX; Liu, ZL; Ni, YS; Xie, XH; Sun, J
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2022 |
| 卷号 | 431 |
| 英文摘要 | The creation of defects into luminescent MOFs allows for manipulation of fluorescent properties and thus leads to the enhanced detection performance for technological applications. Herein, a modulator-induced defect formation strategy was proposed to introduce missing-linker defect into lanthanide-based metal-organic framework (Eu@UiO-MOFs) and the enhanced detection properties was investigated. Notably, the missing-linker numbers in per Zr-6 cluster were calculated to facilitate comparison and quantitively interpretation. By elaborately tailoring defect numbers, the resultant Eu@UiO-MOFs-2 sensor with 0.53 missing linkers per Zr-O cluster showed a remarkably enhanced response slope and realized excellent trace detection under the range of 0-10 ppm with ultralow detection limit to 5.67 x 10(-7) M (114 ppb), acting as a powerful signal amplifier for trace detection of Cd2+. Moreover, the relationship between structural change and defect numbers of Eu@UiO-MOFs-X has been studied to understand the positive effect of the improved enrichment for the optical behavior. As far as we know, this is the first experimental demonstration of missing-linker defects in luminescent MOFs for regulation of optical sensing, offering a unique approach to explore innovative technologies for precisely detecting of heavy metal ion pollutants. |
| 源URL | [http://210.75.249.4/handle/363003/61274]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Du, T,Wang, J,Zhang, L,et al. Missing-linker engineering of Eu (III)-doped UiO-MOF for enhanced detection of heavy metal ions[J]. CHEMICAL ENGINEERING JOURNAL,2022,431. |
| APA | Du, T.,Wang, J.,Zhang, L.,Wang, SC.,Yang, CY.,...&Wang, JL.(2022).Missing-linker engineering of Eu (III)-doped UiO-MOF for enhanced detection of heavy metal ions.CHEMICAL ENGINEERING JOURNAL,431. |
| MLA | Du, T,et al."Missing-linker engineering of Eu (III)-doped UiO-MOF for enhanced detection of heavy metal ions".CHEMICAL ENGINEERING JOURNAL 431(2022). |
入库方式： OAI收割
来源：西北高原生物研究所
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