CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents
Adsorption is currently the most promising capture technology to shorten atmospheric emissions of carbon dioxide (CO2). In this article, we report on the adsorption of CO2 onto pristine, oxidized, and aminated activated carbon (AC) sorbents. From our findings, some functionalized AC sorbents have sh...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2020-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/14/e3sconf_icores2020_07001.pdf |
| _version_ | 1818641335344693248 |
|---|---|
| author | Diyuk Vitaly E. Zaderko Alexander N. Grischenko Liudmyla M. Tsapyuk Galyna G. Vakaliuk Anna V. Lisnyak Vladyslav V. Mariychuk Ruslan |
| author_facet | Diyuk Vitaly E. Zaderko Alexander N. Grischenko Liudmyla M. Tsapyuk Galyna G. Vakaliuk Anna V. Lisnyak Vladyslav V. Mariychuk Ruslan |
| author_sort | Diyuk Vitaly E. |
| collection | DOAJ |
| description | Adsorption is currently the most promising capture technology to shorten atmospheric emissions of carbon dioxide (CO2). In this article, we report on the adsorption of CO2 onto pristine, oxidized, and aminated activated carbon (AC) sorbents. From our findings, some functionalized AC sorbents have shown very promising results in the CO2 capture process. Their maximum adsorption capacity measured by the thermogravimetric method at 20 °C varies between 2.2 and 3.9 mmol CO2/g depending on the content of diethylamino and oxygen-containing groups. The functionalization of the carbon surface with diethylamino groups improves the adsorption capacity by 30–40%. The CO2 adsorption little depends on the texture parameters of the pristine AC sorbents. In the range from 20 to 100 °C, the CO2 thermodesorption showed the effective regeneration of the sorbents. The aminated carbon surface demonstrates the best CO2 adsorption but binds the adsorbed molecules stronger than the oxidized surface, which limits the sorbent regeneration. |
| first_indexed | 2024-12-16T23:25:32Z |
| format | Article |
| id | doaj.art-a85bee90805f44e5a908c5dc4d1f50b4 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-16T23:25:32Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-a85bee90805f44e5a908c5dc4d1f50b42022-12-21T22:12:02ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011540700110.1051/e3sconf/202015407001e3sconf_icores2020_07001CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbentsDiyuk Vitaly E.0Zaderko Alexander N.1Grischenko Liudmyla M.2Tsapyuk Galyna G.3Vakaliuk Anna V.4Lisnyak Vladyslav V.Mariychuk Ruslan5Taras Shevchenko National University of Kyiv, Chemical FacultyTaras Shevchenko National University of Kyiv, Chemical FacultyTaras Shevchenko National University of Kyiv, Chemical FacultyTaras Shevchenko National University of Kyiv, Chemical FacultyTaras Shevchenko National University of Kyiv, Chemical FacultyPrešov University in Prešov, Faculty of Humanities and Natural SciencesAdsorption is currently the most promising capture technology to shorten atmospheric emissions of carbon dioxide (CO2). In this article, we report on the adsorption of CO2 onto pristine, oxidized, and aminated activated carbon (AC) sorbents. From our findings, some functionalized AC sorbents have shown very promising results in the CO2 capture process. Their maximum adsorption capacity measured by the thermogravimetric method at 20 °C varies between 2.2 and 3.9 mmol CO2/g depending on the content of diethylamino and oxygen-containing groups. The functionalization of the carbon surface with diethylamino groups improves the adsorption capacity by 30–40%. The CO2 adsorption little depends on the texture parameters of the pristine AC sorbents. In the range from 20 to 100 °C, the CO2 thermodesorption showed the effective regeneration of the sorbents. The aminated carbon surface demonstrates the best CO2 adsorption but binds the adsorbed molecules stronger than the oxidized surface, which limits the sorbent regeneration.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/14/e3sconf_icores2020_07001.pdf |
| spellingShingle | Diyuk Vitaly E. Zaderko Alexander N. Grischenko Liudmyla M. Tsapyuk Galyna G. Vakaliuk Anna V. Lisnyak Vladyslav V. Mariychuk Ruslan CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents E3S Web of Conferences |
| title | CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents |
| title_full | CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents |
| title_fullStr | CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents |
| title_full_unstemmed | CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents |
| title_short | CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents |
| title_sort | co2 adsorption on pristine oxidized and diethylamine functionalized activated carbon sorbents |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/14/e3sconf_icores2020_07001.pdf |
| work_keys_str_mv | AT diyukvitalye co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents AT zaderkoalexandern co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents AT grischenkoliudmylam co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents AT tsapyukgalynag co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents AT vakaliukannav co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents AT lisnyakvladyslavv co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents AT mariychukruslan co2adsorptiononpristineoxidizedanddiethylaminefunctionalizedactivatedcarbonsorbents |