Wang Man, Li Han-Shu, Ding Xin, Jiang Lizan, Wu Pengyan, Zheng Ruiting, Bao Guoyue, Liu Guoliang, Wang Jian
School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, China.
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
Dalton Trans. 2022 Jul 12;51(27):10351-10356. doi: 10.1039/d2dt01046a.
In this study, an imine-linked luminescent porous organic network (PON) has been successfully synthesized by the Schiff-base condensation reaction between 1,2-diphenylethylenediamine and tris(4-formylphenyl)amine. It exhibits strong fluorescence in an aqueous dispersion and can be applied as a luminescent probe for Cr(VI) (CrO and CrO) with high selectivity and sensitivity (LOD for CrO and CrO were below 0.35 μM and 0.4 μM, respectively) in a turn-off manner. The possible luminescence sensing mechanism and the adsorption capacity of Cr(VI) are also discussed in detail.
在本研究中，通过1,2 - 二苯基乙二胺与三(4 - 甲酰基苯基)胺之间的席夫碱缩合反应，成功合成了一种亚胺连接的发光多孔有机网络(PON)。它在水分散体中表现出强烈的荧光，并且可以作为Cr(VI)(CrO₄²⁻和Cr₂O₇²⁻)的发光探针，以关闭模式具有高选择性和灵敏度(CrO₄²⁻和Cr₂O₇²⁻的检测限分别低于0.35 μM和0.4 μM)。还详细讨论了可能的发光传感机制和Cr(VI)的吸附容量。
