期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 234, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2020.118236
关键词
lndolo[2,3-ajcarbazole; Cu2 Fe3-'Chemosensor; colorimetric sensor
类别
资金
- National Natural Science Foundation of China [21462054]
- Guizhou Education Department Youth Science and Technology Talents Growth Project [KY [2019]122]
A new indolo[2,3-alcarbazole based colorimetric chemosensor Cl was designed and synthesized. The optical properties of Cl were investigated by UV-vis spectroscopy, UV-vis titrations, and fluorescence spectroscopy. The HOMO and LUMO values of Cl were obtained using density functional theory (DFT) calculations. The results indicate that Cl has specific selectivity and high sensitivity for detection of Cu2 and Fe31 ions compared with metal ions (K, Nal, Mg2 ' Zn2, CLI21, Pb2, Hg2 ', Ag', Co2, Cr2 ' Ni2, Mn2,13a2). The presence of Cu2 ions leads to visible color change from yellow to colorless in an aqueous-acetonitrile solution, especially. Moreover, the detection limit for the analysis of Cu2' and Ee3 ' ions is found to be as low as 2.93 x 10 - M and 4.10 x 10 7 M, respectively. Therefore, Cl should have potential applications as a practical colorimetric chemosensor for simultaneous detection of Cit2' and Fe3 in the environment and biological systems. 2020 Elsevier B.V. All rights reserved.
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