Amino-functionalized Cu metal–organic framework nanosheets as fluorescent probes for detecting TNP. Issue 44 (1st November 2021)

• Record Type: Journal Article
• Authors: Chen, Jing; Zhang, Qian; Dong, Jianbin; Xu, Fanghong; Li, Shuying
• Is Part Of: Analytical methods. Volume 13:Issue 44(2021)
• Page Start: 5328
• Page End: 5334
• Publication Date: 2021-11-01
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/d1ay01318a
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : The synthesis of NH2 –Cu-MOF nanosheets and the mechanism of the NH2 –Cu-MOF nanosheets as fluorescent probes for detecting TNP. Abstract : Here, we report a simple and benign method to successfully fabricate amino-functionalized Cu metal–organic framework (NH2 –Cu-MOF) nanosheets. After synthesizing Cu2 O nanocubes, they were mixed with organic ligand 2-aminoterephthalic acid (NH2 BDC) solution at room temperature for 4 hours to form NH2 –Cu-MOF nanosheets. Interestingly, the prepared NH2 –Cu-MOF nanosheets have ultra-thin thickness, directional growth characteristics and excellent crystallinity. Moreover, such nanosheets showed high-intensity and high-stability fluorescence emission under excitation. As TNP in water can quench the fluorescence emission of the fluorescent probe, the NH2 –Cu-MOF nanosheet fluorescent probe was established for detecting TNP in water with high sensitivity and selectivity, which is very useful for assessing the environmental quality and safety of water bodies. Finally, the probe was used to detect TNP in actual samples with good recovery rate.