Robust carbazole-based covalent triazine frameworks with defective ultramicropore structure for efficient ethane-selective ethane-ethylene separation

The selective adsorption of ethane (C2H6) in the separation process of C2H6 and ethylene (C2H4) is of great importance for obtaining polymer-grade C2H4 in industry, yet it is still challenging task to develop suitable adsorbents with large adsorption capacity, high selectivity and excellent stability for efficient separation of C2H6/C2H4. Herein, carbazole-based covalent trazine frameworks (CTFs) prepared by ionothermal strategy are proposed for...