Commercial anion exchange resin modified with azolates for remarkable separation of SO2 from CO2

Nanoporous semi-cycloaliphatic polyaminal networks for capture of SO2, NH3, and I2

“…Furthermore, the SO 2 adsorption capacities of the sPANs decrease because of physisorption after increasing the measurement temperature from 273 K to 298 K. Despite this, the SO 2 uptake of sPANs still exhibits a relatively high value of up to 5.56–5.64 mmol g −1 at 298 K and 100 kPa. To the best of our knowledge, this result exceeds the prior reported nanoporous materials, as shown in Table S2,† such as IRA-900 (Cl) (3.69 mmol g −1 ), 49 SIFSIX-3-Ni (2.74 mmol g −1 ), 50 ELM-12 (2.73 mmol g −1 ), 51 CC3 (2.78 mmol g −1 ), 52 NPC-1 (2.45 mmol g −1 ), 53 and PIM-1 (5.53 mmol g −1 ). 13 sPANs with high nitrogen content and porosity showed high adsorption of sulfur dioxide and ammonia.…”