<abstract xmlns="http://www.w3.org/1999/xhtml">Sepiolite and the sepiolite-based materials were studied in terms of carbon dioxide adsorption. The pore structure and the surface characterization of the obtained materials were specified based on adsorption-desorption isotherms of nitrogen measured at –196oC and carbon dioxide at 0oC. The specific surface area (SSA) was calculated according to the BET equation. The pore volume was estimated using the DFT method. Pristine sepiolite has shown the following value of SSA and CO2 uptake at 0oC – 105 m2/g and 0.27 mmol/g, respectively. The highest value of these parameters was found for material obtained by KOH activation of mixture sepiolite and molasses (MSEP2) – 676 m2/g and 1.49 mmol/g. Sample MSEP2 also indicated the highest value of total pore volume and micropores volume with a diameter up to 0.8 nm.</abstract>

Sepiolite and the sepiolite-based materials were studied in terms of carbon dioxide adsorption. The pore structure and the surface characterization of the obtained materials were specified based on adsorption-desorption isotherms of nitrogen measured at –196oC and carbon dioxide at 0oC. The specific surface area (SSA) was calculated according to the BET equation. The pore volume was estimated using the DFT method. Pristine sepiolite has shown the following value of SSA and CO2 uptake at 0oC – 105 m2/g and 0.27 mmol/g, respectively. The highest value of these parameters was found for material obtained by KOH activation of mixture sepiolite and molasses (MSEP2) – 676 m2/g and 1.49 mmol/g. Sample MSEP2 also indicated the highest value of total pore volume and micropores volume with a diameter up to 0.8 nm.

Sepiolite-based adsorbents for carbon dioxide capture

Faculty of Chemical Technology and Engineering, Department of Catalytic and Sorbent Materials Engineering

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Sepiolite-based adsorbents for carbon dioxide capture"}

Sepiolite and the sepiolite-based materials were studied in terms of carbon dioxide adsorption. The pore structure and the surface characterization of the...

Sepiolite-based adsorbents for carbon dioxide capture

Published Online: May 05, 2021

Page range: 1 - 6

DOI: https://doi.org/10.2478/pjct-2021-0001

Keywords
sepiolite, molasses, carbon-clay composite, CO adsorption

© 2021 Alicja Szymańska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Sepiolite-based adsorbents for carbon dioxide capture

Published Online: May 05, 2021

Page range: 1 - 6

DOI: https://doi.org/10.2478/pjct-2021-0001

Keywordssepiolite, molasses, carbon-clay composite, CO adsorption

© 2021 Alicja Szymańska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
sepiolite, molasses, carbon-clay composite, CO adsorption