A covalent triazine-based framework from tetraphenylthiophene and 2,4,6-trichloro-1,3,5-triazine motifs for sensing o-nitrophenol and effective I-2 uptake

作者：Geng, Tongmou^*; Zhang, Weiyong; Zhu, Zongming; Chen, Guofeng; Ma, Lanzhen; Ye, Sainan; Niu, Qingyuan^*

来源：Polymer Chemistry, 2018, 9(6): 777-784.

DOI：10.1039/c7py01834g

• CONJUGATED MICROPOROUS POLYMER
• POROUS AROMATIC FRAMEWORKS
• REVERSIBLE IODINE CAPTURE
• VOLATILE IODINE
• ORGANIC POLYMERS
• HIGHLY EFFICIENT
• SELECTIVE DETECTION
• FLUORESCENT
• CO2
• EXPLOSIVES

A covalent triazine-based framework with a tetraphenylthiophene (TTPT) backbone was prepared by the AlCl3 catalyzed Friedel-Crafts reaction of commercially available material 2,4,6-trichloro-1,3,5-triazine with tetraphenylthiophene in dichloromethane. This is the first report about the tetraphenylthiophene-based covalent triazine-based framework, which belongs to a nitrogen-rich conjugated microporous polymer. The surface area of TTPT was 315.5 m(2) g(-1). Taking advantage of its large surface area and strong fluorescence, TTPT showed very fast responses and high sensitivity and selectivity to sensing o-nitrophenol, at a SV constant of 6.20 x 10(3) L mol(-1). The limit of detection (LOD) was 2.18 x 10(-9) mol L-1. Furthermore, TTPT displayed efficient and reversible adsorption of radioactive I-2 in vapor (up to 1.77 g g(-1)) and in solution.

• 出版日期2018-2-14
• 单位安庆师范大学; 郑州轻工业大学