Novel “Turn-On” Fluorescent Probe for Highly Selectively Sensing Fluoride in Aqueous Solution Based on Tb3+-Functionalized Metal–Organic Frameworks | Zendy

Haoyang Zheng | Zendy; Xiao Lian | Zendy; Sijia Qin | Zendy; Bing Yan | Zendy

Open Access

Novel “Turn-On” Fluorescent Probe for Highly Selectively Sensing Fluoride in Aqueous Solution Based on Tb³⁺-Functionalized Metal–Organic Frameworks

Author(s) -

Haoyang Zheng,

Xiao Lian,

Sijia Qin,

Bing Yan

Publication year - 2018

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.8b02134

Subject(s) - fluorescence , aqueous solution , metal organic framework , fluoride , turn (biochemistry) , chemistry , metal , inorganic chemistry , photochemistry , combinatorial chemistry , nanotechnology , materials science , organic chemistry , optics , physics , biochemistry , adsorption

A Zr-based metal-organic framework (Zr-MOF) which has free carbonyl groups is synthesized successfully through mix-ligand strategy. Subsequently, Tb 3+ is encapsulated into a Zr-MOF by postcoordinated modification. The Tb 3+ @Zr-MOF exhibits the characteristic emission of Tb 3+ because of efficient sensitization through antenna effects. The Tb 3+ @Zr-MOF is further developed as a novel "turn-on" fluorescent probe to detect fluoride ions in aqueous solution. The results show that Tb 3+ @Zr-MOF exhibits excellent selectivity, high stability, low detection limits, and good anti-interference for sensitizing fluoride ions. In addition, the possible sensing mechanism that the induced luminescence properties may be attributed to Lewis acid-base interactions is discussed.

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