Kraft Lignin-Derived Microporous Nitrogen-Doped Carbon Adsorbent for Air and Water Purification.

ABSTRACT: The study presents a streamlined one-step process for producing highly porous, metal-free, N-doped activated carbon (N-AC) for CO₂ capture and herbicide removal from simulated industrially polluted and real environmental systems. N-AC was prepared from kraft lignin─a carbon-rich and abundant byproduct of the pulp industry, using nitric acid as the activator and urea as the N-dopant. The reported carbonization process under a nitrogen atmosphere renders a product with a high yield of 30% even at high temperatures up to 800 °C. N-AC exhibited a substantial high N content (4-5%), the presence of aliphatic and phenolic OH groups, and a notable absence of carboxylic groups, as confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and Boehm's titratio

SUBMITTER: Tkachenko O 

PROVIDER: S-EPMC10811628 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature