Publication | Closed Access
Water-Stable Metal–Organic Frameworks with Selective Sensing on Fe<sup>3+</sup> and Nitroaromatic Explosives, and Stimuli-Responsive Luminescence on Lanthanide Encapsulation
137
Citations
35
References
2019
Year
Three water-stable luminescent MOFs [Zn<sub>4</sub>(bptc)<sub>2</sub>(NMP)<sub>3</sub>(DMF)(H<sub>2</sub>O)<sub>2</sub>] <sub>n</sub> (1-a), [Cd<sub>4</sub>(bptc)<sub>2</sub>(NMP)<sub>3</sub>(DMF)<sub>2</sub>(H<sub>2</sub>O)<sub>1</sub>] <sub>n</sub> (1-b), and {[Zn<sub>2</sub>(bptc)(DMA)(H<sub>2</sub>O)<sub>2</sub>]·(DMA)<sub>2</sub>·H<sub>2</sub>O} <sub>n</sub> (2), possessing similar chemical components (M<sub>2</sub>:L<sub>1</sub>:Sol<sub>3</sub>) and topology structures, were synthesized by solvents control. Their excellent sensing on iron(III) cation and nitroaromatic explosives (NACs) with great selectivity, sensitivity and a high K<sub>sv</sub> (4.54 × 10<sup>4</sup> for 1-b on PNP) were observed by quenching effects. Furthermore, Zn-MOFs exhibit interesting stimuli-responsive luminescence enhancement after the encapsulation of a series of IIIB cations stimulated different luminescent emitting and intensity enhancement through host-guest processes of the pores in MOFs, especially for two distinct responses of Zn-MOF on a Tb<sup>3+</sup> cation.
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