Excessive emissions of carbon dioxide have caused serious harm to the natural environment. Porphyrin-based microporous organic polymers play an important role in carbon capture and separation. In this study, several porphyrin-based polymers were synthesized through Friedel–Crafts alkylation. Although they have similar structures, the pore sizes and BET surface area of porous tetraphenyl porphyrins (POTPPs) are different on account of the solvent (crosslinker) adopted. The POTPPs exhibit surface areas of up to 940 m² g⁻¹. Owing to the larger surface area and N-contained structure, these POTPPs show high CO₂ adsorption ability (3.25 mmol g⁻¹) and good CO₂/CH₄ separation abilities (6.04) at 273 K/1.0 bar. Therefore, these materials appear to be candidates for CO₂ adsorption and separation.

中文翻译：

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溶剂交联法合成多孔卟啉聚合物

二氧化碳的过量排放已经对自然环境造成了严重的危害。卟啉基微孔有机聚合物在碳捕获和分离中起着重要作用。在这项研究中，通过 Friedel-Crafts 烷基化合成了几种基于卟啉的聚合物。尽管它们具有相似的结构，但由于所采用的溶剂（交联剂）的不同，多孔四苯基卟啉（POTPPs）的孔径和BET表面积是不同的。POTPP 的表面积高达 940 m ² g ^-1。由于较大的表面积和含氮结构，这些POTPPs表现出高CO ₂吸附能力（3.25 mmol g ^-1）和良好的CO ₂ /CH ₄273 K/1.0 bar 时的分离能力 (6.04)。因此，这些材料似乎是CO ₂吸附和分离的候选材料。