<abstract xmlns="http://www.w3.org/1999/xhtml">Activated carbons (ACs) prepared from common nettle (Urtica Dioica L.) were studied in terms of carbon dioxide adsorption. ACs were prepared by KOH chemical activation in a nitrogen atmosphere at temperatures (ranging from 500 to 850°C). The pore structure and the surface characterization of the ACs were specified based on adsorption-desorption isotherms of nitrogen measured at –196°C and carbon dioxide at 0°C. The specific surface area was calculated according to the BET equation. The pore volume was estimated using the DFT method. The highest values of the specific surface area (SSA) showed activated carbons produced at higher carbonization temperatures. All samples revealed presence of micropores and mesopores with a diameter range of 0.3–10 nm. The highest value of the CO2 adsorption, 4.22 mmol/g, was found for the material activated at 700°C.</abstract>

Activated carbons (ACs) prepared from common nettle (Urtica Dioica L.) were studied in terms of carbon dioxide adsorption. ACs were prepared by KOH chemical activation in a nitrogen atmosphere at temperatures (ranging from 500 to 850°C). The pore structure and the surface characterization of the ACs were specified based on adsorption-desorption isotherms of nitrogen measured at –196°C and carbon dioxide at 0°C. The specific surface area was calculated according to the BET equation. The pore volume was estimated using the DFT method. The highest values of the specific surface area (SSA) showed activated carbons produced at higher carbonization temperatures. All samples revealed presence of micropores and mesopores with a diameter range of 0.3–10 nm. The highest value of the CO2 adsorption, 4.22 mmol/g, was found for the material activated at 700°C.

Activated carbons from common nettle as potential adsorbents for CO2 capture

Szczecin, Faculty of Chemical Technology and Engineering, Institute of Inorganic Chemical Technology and Environment Engineering

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Activated carbons from common nettle as potential adsorbents for CO capture

Activated carbons (ACs) prepared from common nettle (Urtica Dioica L.) were studied in terms of carbon dioxide adsorption. ACs were prepared by KOH chemical...

Activated carbons from common nettle as potential adsorbents for CO₂ capture

Published Online: Mar 16, 2019

Page range: 59 - 66

DOI: https://doi.org/10.2478/pjct-2019-0011

Keywords
activated carbon, common nettle, CO2 adsorption, chemical activation

© 2019 Alicja Szymańska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Activated carbons from common nettle as potential adsorbents for CO2 capture

Published Online: Mar 16, 2019

Page range: 59 - 66

DOI: https://doi.org/10.2478/pjct-2019-0011

Keywordsactivated carbon, common nettle, CO2 adsorption, chemical activation

© 2019 Alicja Szymańska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Activated carbons from common nettle as potential adsorbents for CO₂ capture

Keywords
activated carbon, common nettle, CO2 adsorption, chemical activation