Development of Innovative Porous Materials for High-Efficiency CO2 Conversion

Key Points

• This research aims to develop a cost-effective and efficient adsorbent from biomass-derived porous carbon materials for CO2 capture.
• Proposed a sustainable synthesis method using K2CO3 activated carbon from Kraft lignin via spray drying and carbonization.
• Conducted correlation analysis of activation conditions and pore structure related to CO2 adsorption capacity.
• Evaluated CO2 adsorption capacity at 298 K to compare with traditional KOH-activated materials.
• Achieved a CO2 adsorption capacity of 4.54 mmol/g at 298 K, comparable to KOH-activated materials.
• Demonstrated that ultra-fine micropores play a crucial role in enhancing CO2 adsorption effectiveness.

Abstract