期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 29, 页码 24671-24677出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b07901
关键词
metal organic framework; composite; dual-emitting; self-calibrated sensor; TNP detection
资金
- National Natural Science Foundation of China [21471134, 21571158, 21601160]
- Program for Science and Technology Innovative Research Team in University of Henan Province [15IRTSTHN-002]
- Plan for Scientific Innovation Talent of Henan Province [154200510011]
- Innovation Scientists and Technicians Troop Construction Projects of Henan Province [152101510003]
- Zhengzhou University of Light Industry [2015BSJJ042]
An anionic metal organic framework (MOP) {(NH2Me2)[Zn-3(mu(3)-OH)(tpt)(TZB)(3)](DMF)(12)}(n) (1, tpt = 2,4,6-tri(4-pyridyl)-1,3,5-triazine, H(2)TZB = 4-(1H-tetrazol-5-yl)benzoic acid and DMF = N,N-dimethylformamide), with both nanosized cages and partitions, has been solvothermally synthesized, which can serve as a crystalline vessel to encapsulate the fluorescent dye rhodamine 6G (Rh6G) via a bottle around ship approach. As a result, the obtained dye@ MOF composite system features a blue emission of the ligand at 373 nm and a red emission of Rh6G at 570 nm when dispersed in solution, which could be used for decoding the trace amount of 2,4,6-trinitrophenol (TNP) by referring the peak-height ratio of each emission, even in coexistence with other potentially competitive nitroaromatic analytes. Furthermore; the observed fluorescence responses of the composite toward TNP are highly stable, and reversible after recycling experiments. To the best of our knowledge, this is the first example of an MOF-implicated self-calibrated sensor for TNP detection.
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