The synergistic effect of oxygen-containing functional groups on CO₂ adsorption by the glucose-potassium citrate-derived activated carbon.

ABSTRACT: A high surface area activated carbon prepared by an innovative approach using glucose as a carbon source and neutral potassium citrate (PC) as an activator was compared with the porous carbon from glucose using corrosive potassium hydroxide (KOH) as an activator. The PC method showed two notable advantages over KOH activation. The PC method not only significantly increased the yield of the activated carbon, particularly at high carbonization temperatures without sacrificing porosity, but also enhanced the oxygen content in the activated carbon. After investigating CO₂ adsorption on these activated carbons, a remarkable uptake of 3.57 mmol g^-1 at 25 °C at 1 bar was observed by the glucose-PC-derived carbon sample, which possessed the highest oxygen content. In addition

SUBMITTER: Liu B 

PROVIDER: S-EPMC9090663 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature