Li, Han, Li, Cheng, Budarin, Vitaliy L. et al. (4 more authors) (2022) Synthesis, characterisation and carbon dioxide capture capacities of hierarchically porous Starbons®. Green Chemistry. pp. 1545-1560. ISSN 1463-9270
Abstract
The synthesis of hierarchically porous Starbon® based materials from initially highly mesoporous Starbons® is reported. Mesoporous starbons® are prepared from three different biopolymers: starch, alginic acid and pectin and each is then activated using three different activating agents: potassium hydroxide, carbon dioxide and oxygen to give a set of hierarchically porous Starbons® which retain the mesopores of the precursor whilst becoming predominantly microporous. The hierarchically porous materials are characterised using nitrogen porosimetry, CHN analysis, ICP-OES, XPS, SEM and TEM imaging. It is shown that the hierarchically porous Starbons® have higher carbon dioxide adsorption capacities than either the mesoporous Starbon® precursors or conventional microporous activated carbon. The materials show selectivities of up to 64 for adsorption of carbon dioxide versus nitrogen and only lose only 3-7% of their carbon dioxide adsorption capacities when the carbon dioxide is saturated with water. The carbon dioxide capture capacity of all 50 Starbon® materials showed a strong and positive linear correlation with the product of the materials ultramicropore surface area and ratio of ultramicropore (0.4-0.7 nm) volume to total pore volume.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Royal Society of Chemistry 2022. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) The University of York > Faculty of Arts and Humanities (York) > History (York) |
Depositing User: | Pure (York) |
Date Deposited: | 10 Mar 2022 12:40 |
Last Modified: | 22 Mar 2025 00:10 |
Published Version: | https://doi.org/10.1039/D1GC03715C |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1039/D1GC03715C |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:184608 |