Microporous organic hydroxyl-functionalized polybenzotriazole for encouraging CO2 capture and separation

摘要

We report a mild, hydroxyl functionalized and thermal stable benzotriazole-based aerogel (HO-PBTA), which is inspired by phenolic resin chemistry. Taking advantage of the synergistic adsorption interactions between hydroxy-benzotriazole and CO _(2) , and the phobic effect between benzotriazole and nitrogen (N _(2) ), the CO _(2) uptake capacity of the HO-PBTA reaches an encouraging level (6.41 mmol g ~(?1) at 1.0 bar and 273 K) with high selectivity (CO _(2) /N _(2) = 76 at 273 K).