Porous organic polymers (POPs) are an emerging class of porous materials, having many promising applications in a variety of areas. Among them, covalent triazine frameworks (CTFs) featuring conjugated and porous structures can be well applied in optoelectronics. To achieve high optoelectronic performance, usually the design and synthesis of CTFs based on appropriate building blocks is critical. Here we report the synthesis of two fluorescent CTFs based on typical fluorescent building blocks, in which CTF-Py constructed from a pyrene (Py) building block was reported for the first time, showing prospective applications in the sensing of nitroaromatics with high sensitivity, and photocatalytic water splitting and carbon dioxide reduction with high performance in comparison with other porous organic materials.

多孔有机聚合物（POPs）是一类新兴的多孔材料，在各个领域都有许多有希望的应用。其中，具有共轭和多孔结构的共价三嗪骨架（CTF）可以很好地应用于光电。为了实现高光电性能，通常，基于适当的构建模块设计和合成CTF至关重要。在这里，我们报告了基于典型荧光构建基的两个荧光CTF的合成，其中首次报道了由a（Py）构建基构建的CTF-Py，显示了在高灵敏度的硝基芳族化合物感测中的潜在应用，并且与其他多孔有机材料相比，具有光催化水分解和二氧化碳还原的高性能。