is successfully prepared, adopting a feasible design strategy. Initially, the second ligand 1,2,4-benzenetricarboxylic acid (H 3 BTC) is encapsulated based on a solid solution approach, which effectively improves the ligand-based emission intensity of the original LMOF and provides functional sites for introducing the second luminescent center; then, Eu 3+ as the red emission source is loaded into the frameworks through a coordination post-synthetic modification method; finally, to balance the emission intensity at 613 nm (Eu 3+ ) and 465 nm (1,4-naphthalenedicarboxylic acid (H 2 NDC)), 2-thenoyltrifluoroacetone (TTA) as a powerful antenna is introduced. Given the outstanding luminescence properties and structural stability of Eu(TTA)
An Eu3+-functionalized hybrid material (Eu@Zn-MOF) is successfully prepared by the postmodification of Eu3+ ions on its free sulfonic groups. Eu@Zn-MOF can serve as a visual probe to specifically recognize and detect rotenone on the basis of fluorescence quenching effect.
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