abstract
Highly sensitive and selective fluorescence sensing of antibiotics and heavy metal ions are extremely vital to safeguard human health. Two new water-stable ternary coordination polymers (CPs), {[Cd(NPTA)(L)]middot1.75H(2)O}(n) (1) and [Co-1.5(BTC)(L)](n) (2) (H(2)NPTA = 3-nitrophthalic acid, H3BTC = 1,3,5-benzenetricarboxylic acid, and L = 1,5-bis(benzimidazole-2-yl)pentane) were prepared through the hydrothermal process. 1 features a 1D zigzag infinite chain which is linked into a 2D network via pi-pi stacking interactions, while 2 shows a 2D 3,4L35 layer and can be further extended into a 3D supramolecular framework by hydrogen-bonding interactions. The two CPs display superior thermal and chemical stability in a wide pH range from 3 to 12. Furthermore, both 1 and 2 can be as the dual-responsive probes for selective sensing of enrofloxacin (ENR) and Al3+ ions with reusability.
keywords
METAL-ORGANIC FRAMEWORK; SONOCHEMICAL SYNTHESIS; SELECTIVE DETECTION; FLUORESCENT-PROBE; FE3+
subject category
Chemistry
authors
Liu, Y; Fu, LS; Dong, GY
our authors
Lianshe Fu
Assistant Researcheracknowledgements
This project was supported by the National Science Foundation-Steel and Iron Foundation of Hebei Province (B2021209020) . This work was also developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the Foundation for Science and Technology/MCTES.