The preparation of covalent triazine‐based framework via Friedel‐Crafts reaction of 2,4,6‐trichloro‐1,3,5‐triazine with N,N′‐diphenyl‐N,N′‐di(m‐tolyl)benzidine for capturing and sensing to iodine |
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Authors: | Tongmou Geng Min Liu Can Zhang Chen Hu Hong‐Yu Xia |
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Abstract: | The covalent triazine‐based framework (TDPDB) has been prepared by Friedel‐Crafts polymerization reaction of N,N′‐diphenyl‐N,N′‐di(m‐tolyl)benzidine (DPDB) with 2,4,6‐trichloro‐1,3,5‐triazine (TCT) catalyzed by methanesulfonic acid. The yield of the reaction (94.85%) is very high. TDPDB was provided with Brunauer‐Emmett‐Teller specific surface area of 592.18 m2 g?1 and pore volume of 0.5241 cm3 g?1. TDPDB demonstrated an excellent capacity for capturing iodine (3.93 g g?1) and an outstanding ability to fluorescent sensing to iodine with Ksv of 5.83 × 104 L mol?1. It also showed high fluorescent sensing sensitivity to picric acid. |
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Keywords: | covalent triazine‐based frameworks fluorescent sensing Friedel‐Crafts reaction iodine uptake methanesulfonic acid |
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