- A dual-model and on-off fluorescent Al3+/Cu2+-chemosensor and the detection of F-/Al3+ with ''in situ'' prepared Al3+/Cu2+ complexes
- 来源：于明明教授个人网站
2017-06-12
- A multifunctional fluorescent chemosensor for Al3+ and Cu2+ has been developed, which displays a dual-model and on-off fluorescence response upon addition of Al3+ and Cu2+ respectively. The fluorescence signals of the chemosensor can be restored with F- and ethylenediaminetetraacetic acid (EDTA) disodium for Al3+ and Cu2+, showing that the binding of the chemosensor and Al3+/Cu2+ is chemically reversible. The ''in situ'' prepared Al3+ complex (1 center dot Al) showed high selectivity toward F-, which can be applied to distinguish F- from Cl-, Br- and I-. Moreover, the fluorescence emission intensity of the ''in situ'' prepared Cu2+ complex (1 center dot Cu) is increased with the addition of Al3+, demonstrating that 1 center dot Cu could be a good off-on Al3+ sensor candidate.
- [来源：中国聚合物网]