التفاصيل البيبلوغرافية
| العنوان: |
A highly efficient lanthanide coordination polymer luminescent material for the multi-task detection of environmental pollutants. |
| المؤلفون: |
Wang, Xin, He, Shunsheng, Chen, Jun, Wei, Jiamin, Chen, Chaoyue, Shi, Wenyan, Wu, Dayu, Fu, Lianshe, Yang, Tinghai |
| المصدر: |
Dalton Transactions: An International Journal of Inorganic Chemistry; 1/7/2024, Vol. 53 Issue 1, p276-284, 9p |
| مصطلحات موضوعية: |
POLLUTANTS, RARE earth metals, COORDINATION polymers, TERBIUM, PHOTODARKENING (Optics), CARBOXYMETHYL compounds, LUMINESCENCE quenching, CHARGE exchange, PICRIC acid |
| مستخلص: |
It is challenging to explore novel-structure lanthanide coordination polymers (Ln-CPs) for sensing environmental pollutants. Herein, we designed and synthesized an organic bridging linker 3-(carboxymethoxy)-1-(carboxymethyl) pyrazole-4-carboxylic acid (H3ccpc), and then successfully prepared and characterized a novel Ln-CP, namely [Tb2(ccpc)2(H2O)6]·1.5H2O (ccpcTb). Structural analysis indicates that ccpcTb exhibits a two-dimensional structure, in which Tb ions are in an eight-coordinated environment. The photoluminescence performance of ccpcTb was discussed in detail. The ccpcTb displays bright green luminescence and behaves as a multi-responsive luminescent sensor toward Fe3+ ions, Cr2O72− ions and 2,4,6-trinitrophenol with high selectivity and low detection limits. Furthermore, the possible luminescence sensing mechanisms have been addressed in detail. The luminescence quenching mechanism of sensing Fe3+ and Cr2O72− is attributed to the energy competitive absorption, while that of sensing TNP is due to the synergistic effect of energy competitive absorption and photo-induced electron transfer. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
