期刊
DYES AND PIGMENTS
卷 160, 期 -, 页码 159-164出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2018.08.012
关键词
Metal-organic framework; Fluorescent sensor; Highly selective and sensitive; Pb2+ ions; UO22+ ions
资金
- Natural Science Foundation of Hebei Province, China [B2017201094, B2017201131]
Designing highly efficient fluorescent sensors for detection of toxic pollutants has aroused great interest. In this work, a carboxyl-functionalized Zn(II) metal-organic framework (MOF), [Zn(HL)(bipy)(0.5)(H2O))center dot 2H(2)O (1) [H3L = 9-(4-carboxy-phenyl)-9H-carbazoly-3,6-dicarboxylic acid, bipy = 4,4'-bipyridine] was successfully synthesized. Crystal structure analysis reveals that 1 possesses a three dimensional (3D) unimodal 6-connected network. 1 can sense Pb2+ and UO22+ ions in aqueous solution by fluorescence quenching. High selectivity and sensitivity of 1 to toxic ions reveals it is a good bi-functional chemical sensor.
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