Mixed lanthanide–organic frameworks with borono groups for colorimetric detection of excess fluoride levels in rivers

Chronic fluoride (F−) toxicity has been endemic at least 25 countries around the world due to prolonged consumption of contaminated water, posing a great threat to human health. Rapid and convenient visual methods for F− ion detection are hence needed for public safety. In this work, we show a serie...

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Bibliographic Details
Published in:Inorganic chemistry frontiers 2024, Vol.11 (12), p.3626-3632
Main Authors: Hui, Min, Zhu, Zhuohang, Huang, Meiyi, Zhou, Junbao, Zhao, Nian, Cheng, Peng
Format: Article
Language:English
Subjects:
Public safety
Single crystals
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Summary:Chronic fluoride (F−) toxicity has been endemic at least 25 countries around the world due to prolonged consumption of contaminated water, posing a great threat to human health. Rapid and convenient visual methods for F− ion detection are hence needed for public safety. In this work, we show a series of novel mixed lanthanide–organic frameworks, namely {[EuxTb2−x(BIPA)3(DMF)(H2O)3]·2DMF·3H2O}n (H2BIPA = 5-boronoisophthalic acid; x = 0, 0.12, 0.28, 0.30, 0.68, 1.04 and 2 for 1–7, respectively), with abundant recognition sites of borono groups for convenient and visual detection of excess F− ions in river water. Wide linear range for F− ion detection can be obtained through systematic optimization of sensing materials. A rare double dynamic sensing process between F− ions and lanthanide–organic frameworks was clearly revealed though single-crystal X-ray diffraction and transient fluorescence techniques.
ISSN:2052-1545
2052-1553
DOI:10.1039/d4qi00630e