Selective Sensing of Fe3+ and Al3+ Ions and Detection of 2,4,6‐Trinitrophenol by a Water‐Stable Terbium‐Based Metal–Organic Framework
- 10 September 2015
- journal article
- research article
- Published by Wiley in Chemistry – A European Journal
- Vol. 21 (44), 15705-15712
- https://doi.org/10.1002/chem.201501162
Abstract
A water‐stable luminescent terbium‐based metal–organic framework (MOF), {[Tb(L1)1.5(H2O)]⋅3 H2O}n (Tb‐MOF), with rod‐shaped secondary building units (SBUs) and honeycomb‐type tubular channels has been synthesized and structurally characterized by single‐crystal X‐ray diffraction. The high green emission intensity and the microporous nature of the Tb‐MOF indicate that it can potentially be used as a luminescent sensor. In this work, we show that Tb‐MOF can selectively sense Fe3+ and Al3+ ions from mixed metal ions in water through different detection mechanisms. In addition, it also exhibits high sensitivity for 2,4,6‐trinitrophenol (TNP) in the presence of other nitro aromatic compounds in aqueous solution by luminescence quenching experiments.Keywords
Funding Information
- National Natural Science Foundation of China (21371153)
- Program for Science & Technology Innovation Talents in Universities of Henan Province (13HASTIT008)
- Key Scientific and Technological Project of Henan Province (132102210411)
- Zhengzhou University
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