期刊
DYES AND PIGMENTS
卷 156, 期 -, 页码 1-7出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2018.03.060
关键词
Aggregation induced emission enhancement; Conjugated polymer; Chemodosimeter; Mercury ions; Fluorescence probe
资金
- Educational Commission of Hubei Province [Q20172905]
- Doctoral Fund Project of Huanggang Normal University [201704203]
- Research Foundation of Huanggang Normal University [201710703, 201721903]
Based on Hg2+-promoted deprotection reaction of thioketal, a type of thioketal decorated conjugated polymer (PTS) with the feature of aggregation induced emission enhancement (AIEE) was successfully synthesized as fluorescent turn on probe for Hg2+. With the introduction of trace aqueous Hg2+, fluorescence of PTS in THF-H2O mixture (water fraction of 98%) exhibited significant enhancement. The response was very fast with good selectivity towards Hg2+ due to the specific chemical reaction. Other common metal ions (Ag+, Cr3+, Al3+, Fe3+, Ca2+, NI2+, Co2+, Pb2+, Cu2+, Zn2+, Fe2+, Mn2+, Cd2+, Ba2+, Li+, Na+ and K+) gave nearly no disturbance to the sensing process. Furthermore, the detection limit of Hg2+ reached 2.3 x 10(-7) mol L-1 for this sensing system.
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