Study on porous carbon materials derived from Chitosan

The materials with high specific surface area, uniform pore size distribution, and high nitrogen content were prepared by using chitosan as raw material and a low co-soluble mixture (lithium nitrate, potassium nitrate, and potassium sulfate) as a pore-forming agent and salt template agent. The CO 2 adsorption capacity of the material was tested at 25°C (2.15 mmol/g) and 0°C (2.88 mmol/g). It was found that more pores and higher nitrogen content were conducive to the adsorption of CO 2 by the material.