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A water-stable Tb-MOF as a multifunctional luminescent sensor for Fe3+and Cr2O72-in water
被引:8
|作者:
Sun, Na
[1
]
Zhang, Yujie
[1
]
Yin, Li
[1
]
Xiong, Gang
[1
]
You, Lixin
[1
]
He, Yongke
[1
]
Sun, Yaguang
[1
]
机构:
[1] Shenyang Univ Chem Technol, Key Lab Inorgan Mol Based Chem Liaoning Prov, Shenyang 110142, Peoples R China
基金:
中国国家自然科学基金;
关键词:
MOF;
Fluorescence;
Crystal structure;
METAL-ORGANIC FRAMEWORK;
COORDINATION POLYMERS;
FLUORESCENT-PROBE;
HIGH-SENSITIVITY;
IONS;
COMPLEXES;
SITES;
PH;
TEMPERATURE;
FABRICATION;
D O I:
10.1016/j.ica.2023.121581
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A 3D terbium metal-organic framework, {[Tb(CPBi)(DMF)(H2O)]center dot H2O}n. (namely Tb-MOF, H3CPBi = 2-(3,5dicarboxyphenyl)-6-carboxybenzimidazole, DMF = N,N-Dimethylformamide) was synthesized under solvothermal conditions for the luminescent study. By virtue of the strong luminescence and excellent water stability, Tb-MOF has been applied as a multi-responsive luminescent sensor for Fe3+ and Cr2O72- in aqueous solutions, which exhibits outstanding detection effect with high selectivity and sensitivity. The Ksv values of TbMOF for Fe3+ and Cr2O72- are 7.435 x 103 M-1 and 1.1652 x 104 M-1 in water systems, respectively. Meanwhile, the possible detecting mechanisms of Tb-MOF for Fe3+ and Cr2O72- were further speculated.
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页数:6
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