Sustainable CO₂ Capture: N,S-Codoped Porous Carbons Derived from Petroleum Coke with High Selectivity and Stability.

ABSTRACT: CO₂ capture from the flue gas is a promising approach to mitigate global warming. However, regulating the carbon-based adsorbent in terms of textural and surface modification is still a challenge. To overcome this issue, the present study depicts the development of cost-effective and high-performance CO₂ adsorbents derived from petroleum coke, an industrial by-product, using a two-step process involving thiourea modification and KOH activation. A series of N,S-codoped porous carbons was synthesized by varying activation temperatures and KOH quantity. The optimized sample exhibited a high specific surface area of 1088 m²/g, a narrow micropore volume of 0.52 cm³/g, and considerable heteroatom doping (1.57 at.% nitrogen and 0.19 at.% sulfur). The as

SUBMITTER: Shao J 

PROVIDER: S-EPMC11767474 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature