Weak Coupling Strategy to Construct High-Performance Sm/Tb-Doped Lanthanide Coordination Polymer Luminescent Sensor for D<sub>2</sub>O Detection
Accurate measurement of the purity and content of heavy water is of great concern in nuclear energy, the chemical industry, and biomedicine. Since the physical and chemical properties of D<sub>2</sub>O and H<sub>2</sub>O are very similar, achieving luminescent detection is challenging. Due to the difference in the vibrational frequency of the O-D and the O-H bonds, the quenching efficiency of the excited state of Ln<sup>3+</sup> is different, which leads to a significant difference in the optical properties of Ln<sup>3+</sup>. Based on this theory, we composed a weak coupling strategy to strengthen the luminescence difference of Ln<sup>3+</sup>. Then, we demonstrated the weak coupling effect and how to improve detection performance by analyzing L1-Eu<sub>0.14</sub>Tb<sub>0.86</sub>(C<sub>22</sub>H<sub>20</sub>Eu<sub>0.14</sub>Tb<sub>0.86</sub>N<sub>3</sub>O<sub>10</sub>) and L1-Sm<sub>0.45</sub>Tb<sub>0.55</sub>(C<sub>22</sub>H<sub>20</sub>Sm<sub>0.45</sub>Tb<sub>0.55</sub>N<sub>3</sub>O<sub>10</sub>). The structure and performance of the two sensors were characterized in detail. A series of heavy water detection luminescence sensing experiments show that L1-Sm<sub>0.45</sub>Tb<sub>0.55</sub> and L1-Eu<sub>0.14</sub>Tb<sub>0.86</sub> can not only qualitatively distinguish D<sub>2</sub>O and H<sub>2</sub>O with the naked eye but also quantitatively detect any concentration of H<sub>2</sub>O in D<sub>2</sub>O. The prepared composite films L1-Sm<sub>0.45</sub>Tb<sub>0.55</sub>@PMMA and L1-Eu<sub>0.14</sub>Tb<sub>0.86</sub>@PMMA have practical application value. The application of Sm/Tb-doped lanthanide coordination polymers for detecting the H<sub>2</sub>O content in D<sub>2</sub>O has not been reported.
Authors
- Canqing Yu (ORCID: https://orcid.org/0000-0002-0019-0014)
- Weisheng Liu (ORCID: https://orcid.org/0000-0001-5448-6315)
- Wei Liu (ORCID: https://orcid.org/0000-0003-0101-5792)
- Jiahui Zhou (ORCID: https://orcid.org/0000-0001-7272-6378)
- Yiliang Sun
- Chunyang Chen (ORCID: https://orcid.org/0000-0002-7969-5348)
- Bo Zhou (ORCID: https://orcid.org/0000-0002-8713-5906)
- Xiaoyan Wang (ORCID: https://orcid.org/0009-0006-9559-9221)
- Yuan Wang (ORCID: https://orcid.org/0009-0009-8509-6809)
Institutions
- Suzhou University of Science and Technology (CN)
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2024-11-28
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c03733
- Citations
- 3
- Primary Topic
- Lanthanide and Transition Metal Complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.35
Funders
- National Natural Science Foundation of China
- Science and Technology Department of Gansu Province