Sulfur hexafluoride (SF₆) is widely used in the power industry and significantly contributes to the greenhouse effect, necessitating the development of efficient materials for SF₆ capture, particularly fluorine-containing materials. However, existing fluorine-containing materials often require complex monomers and high synthesis temperatures. Herein, we report the synthesis of a fluorine-functionalized carbazole-based nanoporous organic polymer (CNOP-7) at room temperature, using commercially available 4,4′-bis(9H-carbazole-9-yl)-1,1′-biphenyl and 1,1,1-trifluoroacetone. CNOP-7 contains 14.7% fluorine atoms and exhibits a high specific surface area of 1270 m²·g^–1, demonstrating excellent SF₆ adsorption and separation performance. The SF₆/N₂ selectivity of CNOP-7 reaches 107 at 273 K and 73 at 298 K. Furthermore, dynamic breakthrough experiments confirm that CNOP-7 can efficiently and repeatedly separate SF₆ from SF₆/N₂ mixtures. Molecular simulations reveal the mechanism behind its efficient separation. This work offers fresh perspectives on the development and fabrication of adsorbents for efficient SF₆ sequestration.

中文翻译：

---

在室温下合成用于高效吸附和分离 SF6 的纳米多孔有机聚合物


六氟化硫 （SF₆） 广泛用于电力行业，并显着导致温室效应，因此需要开发用于 SF₆ 捕获的高效材料，尤其是含氟材料。然而，现有的含氟材料通常需要复杂的单体和高合成温度。在此，我们报道了在室温下使用市售的 4,4′-双（9H-咔唑-9-基）-1,1′-联苯和 1,1,1-三氟丙酮合成了氟官能化咔唑基纳米多孔有机聚合物 （CNOP-7）。CNOP-7 含有 14.7% 的氟原子，比表面积高达 1270 m²·g^–1，表现出优异的 SF₆ 吸附和分离性能。CNOP-7 的 SF₆/N₂ 选择性在 273 K 时达到 107，在 298 K 时达到 73。此外，动态突破实验证实，CNOP-7 可以高效、重复地将 SF₆ 与 SF₆/N₂ 混合物分离。分子模拟揭示了其有效分离背后的机制。这项工作为开发和制造用于高效 SF₆ 封存的吸附剂提供了新的视角。