DOI number:10.1016/j.matlet.2025.139413
Journal:Materials Letters
Key Words:Biomass; CO2 uptake; K2CO3 activation; KOH activation; Porous carbon material
Abstract:This study introduces a simple, solvent-free method for synthesizing nitrogen-doped ultra-microporous carbon materials using sugarcane bagasse as the carbon source and KOH or K2CO3 as the activating agent. The effects of different activating agent types on physical and chemical properties were discussed. The KOH-activated BOH material exhibited excellent CO2 adsorption properties (4.36 mmol/g at 0 °C and 2.96 mmol/g at 25 °C), with a high surface area (787.9 m2/g), ultra-micropore volume (0.27 cm3/g), and nitrogen content (8.02 at%). While the CO2 uptake of K2CO3-activated material (BK) demonstrates lower values of 3.47 mmol/g and 2.23 mmol/g, respectively. The findings suggest that the combination of higher nitrogen content and ultra-micropore volume enhances CO2 adsorption capacity, demonstrating the potential of KOH-activated carbon materials for efficient CO2 capture applications.
Indexed by:Journal paper
Document Code:139413
Volume:403
Translation or Not:no
Date of Publication:2025-08-28
Included Journals:SCI
Links to published journals:https://www.sciencedirect.com/science/article/pii/S0167577X25014430?via%3Dihub