AIE-active phenothiazine based Schiff-base for the selective sensing of the explosive picric acid in real water samples and paper-based device

Journal of Photochemistry and Photobiology A: Chemistry(2023)

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摘要
•Di-Phenothiazine based Schiff base (DPTZ-SB) was synthesized using facile methods.•DPTZ-SB showed AIEE properties with a 9.4-fold increase in fluorescence intensity for 10:90 DMF/water mixture.•A novel fluorescent paper sensor was developed based on DPTZ-SB.•The paper sensor is stable, recyclable, and cost-effective.•The DPTZ-SB recognized PA with a limit of detection of 0.2 ppb and 0.04 ppb in solution and paper sensor, respectively.
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关键词
Schiff base,Picric acid,Nitroaromatic compounds,AIEE,Paper Sensor,Explosives
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