期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 5, 期 8, 页码 2015-2021出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc05615f
关键词
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资金
- National Natural Science Foundation of China [21471134, 21571158]
- Program for Science & Technology Innovative Research Team in University of Henan Province [15IRTSTHN002]
- Innovation Scientists and Technicians Troop Construction Projects of Henan Province [152101510003]
- Plan for Scientific Innovation Talent of Henan Province [154200510011]
A terbium(III) lanthanide-organic framework (534-MOF-Tb) with a green-emission signal was successfully obtained by the solvothermal reaction of Tb3+ ions with the organic ligand H3TBOT (2,4,6-tris[1-(3-carboxylphenoxy)ylmethyl]mesitylene). 534-MOF-Tb contains microporous quadrangle channels with accessible Lewis-base sites and coordinated water molecules, which are feasible to anchor and recognise multifarious analytes. It can serve as a recyclable multi-responsive sensing material for detecting Fe3+, MnO4-, Cr2O72-, and p-nitrotoluene (4-NT). Significantly, this is the first reported MOF-based sensor for detecting explosive 4-NT. Moreover, the mechanism of the selective luminescence quenching response for Fe3+, MnO4-, Cr2O72- or 4-NT can be mainly explained in terms of the competition between the absorption of the light source energy and the electronic interaction between the analyte and the TBOT ligand.
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