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Utilization of porous liquids for catalytic conversion

Yewei Ren, Guosheng Zhou, Ziyang Lu*
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A novel thiazole-based luminescent porous organic polymer as recyclable and selective turn-off fluorescent sensor for ultrasensitive detection of Pd2+

Hui-Jun Feng, Xue Sun, Jun-Wen Wang*

Chin. J. Struct. Chem., 2023, 42: 100065. DOI: 10.1016/j.cjsc.2023.100065

April 15, 2023

ABSTRACT

In conclusion, we have developed a highly sensitive luminescent porous organic polymer probe TAPB-BTDD for ultrasensitive detection of Pd2+ in aqueous solution. The results manifested that TAPB-BTDD is a typical turn off sensor and possesses high sensitivity and specificity for Pd2+. A linear curve was achieved when measured in the range of 100–900 μM (F0/F = 0.7585 + 0.0075 [Pd2+], correlation coefficient R2 = 0.9912). The LOD was determined to be 0.54 μM for Pd2+ in methanol/H2O solution, and the other ions showed no interference effect. In addition, TAPB-BTDD showed basically unchanged emission intensities and rapid response to Pd2+ after eight recycling tests, suggesting that the POP has high stable recycle repeatability. More importantly, this work highlights that imine-based porous organic polymer is an ideal candidate for fluorescent probe for ultrasensitive detection of heavy metal ions.



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