Photochemical and Photobiological Sciences p. 1373 - 1381 (2020)
Update date:2022-08-16
Topics:
Qi, Xiao-Ni
Dong, Hong-Qiang
Yang, Hai-Long
Qu, Wen-Juan
Zhang, You-Ming
Yao, Hong
Lin, Qi
Wei, Tai-Bao
A catechol-functionalized phenazine imidazole (PD) was tailored with 2,3-diaminophenazine and 3,4-dihydroxy benzaldehyde, and it served as a hybrid acceptor for capturing HSO4- anions. The selectivity and sensitivity of the PD receptor for anion sensing were studied. It was found that the PD receptor could not only display a preferable sensitivity to HSO4- ions with a "turn-off"fluorescence response, but also have a strong anti-interference ability toward other common anions, especially basic anions such as CH3COO-, HPO42-, and H2PO4-. The anion recognition mechanism of PD towards HSO4- is based on multiple hydrogen bond interactions. Finally, the strips for anion detection were prepared, which were verified to be a convenient and high-efficiency test kit for detecting HSO4- ions with the naked eye.
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