A trimethylammonium-functionalized polyepichlorohydrin membrane (TPp) was synthesized using inexpensive, eco-friendly raw materials and easy synthetic steps and evaluated as CO₂ sorbent. The polymeric membrane exhibited satisfactory sorbent performance in terms of stability, rapid adsorption, high selectivity and working capacity. The peak capture capability of 1.34 mmol g^-1 was achieved at 25 °C under simulated flue gas condition (humidified 10% CO₂, 20% RH). The quaternary ammonium groups enable superior amine efficiency (0.95 mmol CO₂/mmol N at 25 °C), well exceeding the highest value reported to date for low-temperature CO₂ sorbents under simulated flue gas conditions, and reversible trap-release of CO₂. De facto, the TPp sorbent can be completely regenerated under mild conditions (50 °C in pure N₂ for 20 min), with only 64.8 kJ mol^-1 consumed during sorbent regeneration. The low cost, versatility and ease of preparation make the TPp membrane a promising sorbent for scalable and cost-effective CO₂ capture.

使用廉价、环保的原材料和简单的合成步骤合成了三甲基铵官能化聚环氧氯丙烷膜 (TPp)，并作为 CO ₂吸附剂进行了评估。聚合物膜在稳定性、快速吸附、高选择性和工作容量方面表现出令人满意的吸附性能。在模拟烟气条件（加湿10% CO ₂，​​20% RH）下，在25°C时实现了1.34 mmol g ^-1的峰值捕获能力。季铵基团可实现卓越的胺效率（25 °C 时为 0.95 mmol CO ₂ /mmol N），远超过迄今为止在模拟烟气条件下低温 CO _{2吸附剂报道的最高值，以及可逆的 CO 捕集释放2} . 事实上，TPp 吸附剂可以在温和条件下完全再生（50 °C 在纯 N ₂中 20 分钟），在吸附剂再生过程中仅消耗64.8 kJ mol ^{-1 。}低成本、多功能性和易于制备使 TPp 膜成为可扩展且具有成本效益的 CO ₂捕获的有前途的吸附剂。