Waste wool derived nitrogen-doped hierarchical porous carbon for selective CO₂ capture.

ABSTRACT: The goal of this research is to develop a low-cost porous carbon adsorbent for selective CO₂ capture. To obtain advanced adsorbents, it is critical to understand the synergetic effect of textural characteristics and surface functionality of the adsorbents for CO₂ capture performance. Herein, we report a sustainable and scalable bio-inspired fabrication of nitrogen-doped hierarchical porous carbon by employing KOH chemical activation of waste wool. The optimal sample possesses a large surface area and a hierarchical porous structure, and exhibits good CO₂ adsorption capacities of 2.78 mmol g^-1 and 3.72 mmol g^-1 at 25 °C and 0 °C, respectively, under 1 bar. Additionally, this sample also displays a moderate CO₂/N₂ s

SUBMITTER: Li Y 

PROVIDER: S-EPMC9080743 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature