Efficient CO₂ Capture Using Nitrogen-Enriched Microporous Carbon Derived from Polybenzoxazine in a Single-Step Process for Environmental Sustainability.

ABSTRACT: In this research, we successfully synthesized nitrogen-enriched microporous carbon through a meticulous process involving two different activation procedures. Initially, polybenzoxazine was carbonized at 800 °C to create a precursor material, which was then activated with two different activating agents (KOH and KMnO₄) at the same temperature. This activation significantly enhanced the material's porosity, increasing its specific surface area from 335 m²/g (KOH activated) to 943 m²/g (KMnO₄ activated). XPS analysis confirmed the presence of nitrogen functionalities, including secondary-N, oxide-N, pyridone-N, and pyridine-N, which are critical for CO₂ adsorption. Adsorption tests demonstrated a high CO₂ uptake of 3.8 mmol/g

SUBMITTER: Periyasamy T 

PROVIDER: S-EPMC11820653 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature