四苯乙烯
硝基苯
检出限
荧光
聚合物
无机化学
化学
苯
微型多孔材料
选择性
吸附
胺气处理
光化学
材料科学
有机化学
催化作用
吸附
物理
量子力学
聚集诱导发射
色谱法
作者
Yingting Zheng,Hailong Wang,Jianzhuang Jiang
标识
DOI:10.1016/j.dyepig.2019.107929
摘要
A fluorescent porous tetraphenylethylene-based organic polymer (PTOP) was constructed by the reaction of 5,5',5'',5‴-(ethene-1,1,2,2-tetrayltetrakis(benzene-4,1-diyl))tetrakis(pyrimidin-2-amine) and cyanuric chloride in the presence of potassium carbonate. CO2 sorption experiment at 195 K reveals the permanent porosity of PTOP with a Brunauer-Emmett-Teller surface area of 227 m2 g−1. In particular, the existence of rich secondary amines and pyrimidine nitrogen atoms surrounding the 1,3,5-triazine moieties in PTOP provides abundant chelating sites for metal ions, endowing a fast-response and sensitive fluorescence sensing Fe(III) with a low limit of detection of 4.5 μM. In addition, this polymer also shows an excellent sensing performance towards nitrobenzene with good selectivity and a low detection limit of 1.6 nM.
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