@article{ART003208681},
author={},
title={Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={2},
pages={825-837}
TY - JOUR
AU -
TI - Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination
JO - Carbon Letters
PY - 2025
VL - 35
IS - 2
PB - Korean Carbon Society
SP - 825
EP - 837
SN - 1976-4251
AB - Marine biomass (MB) is gaining attention as a sustainable and eco-friendly carbon source within the carbon cycle, particularly in regions with extensive coastlines. However, the high content of alkali and alkaline earth metals (AAEMs) in MB poses challenges in producing functional carbon materials, like activated carbon (AC), with a high specific surface area (SSA). In this study, we employed a two-step CO2 activation process, coupled with acid treatment, to successfully convert MB into highly porous AC. Preheating followed by nitric acid washing reduced AAEM content from 22.4 to 2.5 wt%, and subsequent atmospheric CO2 activation produced AC with an SSA of 1700 m2/g and mesopores of 3–5 nm. A further treatment with a mixed acid solution of nitric and acetic acids reduced impurities to below 1.0 wt%. A second pressurized CO2 activation at 1 MPa yielded AC with an SSA exceeding 2100 m2/g, with mesopores accounting for more than 50% of the total pore volume. This method demonstrates an effective approach to producing high-performance AC from MB for advanced applications.
KW - Marine biomass Activated carbon Alkali and alkaline earth metals Atmospheric and pressurized CO2 activations Mesopore
DO -
UR -
ER -
. (2025). Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination. Carbon Letters, 35(2), 825-837.
. 2025, "Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination", Carbon Letters, vol.35, no.2 pp.825-837.
"Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination" Carbon Letters 35.2 pp.825-837 (2025) : 825.
. Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination. 2025; 35(2), 825-837.
. "Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination" Carbon Letters 35, no.2 (2025) : 825-837.
. Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination. Carbon Letters, 35(2), 825-837.
. Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination. Carbon Letters. 2025; 35(2) 825-837.
. Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination. 2025; 35(2), 825-837.
. "Enhanced porosity in marine biomass-derived activated carbon via two-step CO2 activation and acidic decontamination" Carbon Letters 35, no.2 (2025) : 825-837.
