共价键
三嗪
多孔性
催化作用
纳米技术
材料科学
化学工程
组合化学
溶剂热合成
制作
聚合
化学
有机化学
高分子化学
聚合物
无机化学
病理
工程类
医学
替代医学
作者
Tian Sun,Yan Liang,Wenjia Luo,Lei Zhang,Xiaofeng Cao,Yuxi Xu
标识
DOI:10.1002/anie.202203327
摘要
Scalable and eco-friendly synthesis of crystalline porous covalent triazine frameworks (CTFs) is essential to realize their broad industrial applications but remains a great challenge, which requires the fundamental understanding of the two-dimensional polymerization mechanism. Herein, we report a universal polyphosphoric acid (H6 P4 O13 )-catalyzed nitrile trimerization route to synthesize a series of highly crystalline CTFs with high specific surface areas. This new strategy enables the cost-effective large-scale fabrication of crystalline CTFs at kilogram level for the first time. Through density functional theory calculation and detailed controlled experiments, we reveal that the polyphosphate acid show much higher catalytic activity for trimerization reaction than its analogues such as P2 O5 and H3 PO4 . Furthermore, the crystalline CTFs with regular porosity and abundant triazine groups exhibit ultrahigh removal efficiency of micropollutants, indicating its great potential in environment remediation.
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