Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes
Three chitosans with different morphologies have been used (commercial chitosan powder, chitosan in film form and chitosan in globular form synthesized by the freeze-dried method) for the synthesis of biochars. The pyrolytic treatment has revealed that the biochar synthesized from the chitosan forme...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/23/5240 |
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| author | Isabel Barroso-Martín Juan Antonio Cecilia Enrique Vilarrasa-García Daniel Ballesteros-Plata Carmen Pilar Jiménez-Gómez Álvaro Vílchez-Cózar Antonia Infantes-Molina Enrique Rodríguez-Castellón |
| author_facet | Isabel Barroso-Martín Juan Antonio Cecilia Enrique Vilarrasa-García Daniel Ballesteros-Plata Carmen Pilar Jiménez-Gómez Álvaro Vílchez-Cózar Antonia Infantes-Molina Enrique Rodríguez-Castellón |
| author_sort | Isabel Barroso-Martín |
| collection | DOAJ |
| description | Three chitosans with different morphologies have been used (commercial chitosan powder, chitosan in film form and chitosan in globular form synthesized by the freeze-dried method) for the synthesis of biochars. The pyrolytic treatment has revealed that the biochar synthesized from the chitosan formed by the freeze-dried method reaches the highest CO<sub>2</sub>-adsorption capacity (4.11 mmol/g at 0 °C and a pressure of 1 bar) due to this adsorbent is highly microporous. Moreover, this biochar is more resistant to the pyrolytic treatment in comparison to the biochars obtained from the commercial chitosan and chitosan in the form of film. CO<sub>2</sub>-adsorption studies at different temperatures have also shown that the adsorption capacity diminishes as the adsorption temperature increases, thus suggesting that the adsorption takes place by a physical process. |
| first_indexed | 2024-03-09T17:35:12Z |
| format | Article |
| id | doaj.art-cc2c6fba7da548f2ae712d1fd0070641 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T17:35:12Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-cc2c6fba7da548f2ae712d1fd00706412023-11-24T12:00:42ZengMDPI AGPolymers2073-43602022-12-011423524010.3390/polym14235240Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture ProcessesIsabel Barroso-Martín0Juan Antonio Cecilia1Enrique Vilarrasa-García2Daniel Ballesteros-Plata3Carmen Pilar Jiménez-Gómez4Álvaro Vílchez-Cózar5Antonia Infantes-Molina6Enrique Rodríguez-Castellón7Departamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainGrupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza 60455-760, CE, BrazilDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainThree chitosans with different morphologies have been used (commercial chitosan powder, chitosan in film form and chitosan in globular form synthesized by the freeze-dried method) for the synthesis of biochars. The pyrolytic treatment has revealed that the biochar synthesized from the chitosan formed by the freeze-dried method reaches the highest CO<sub>2</sub>-adsorption capacity (4.11 mmol/g at 0 °C and a pressure of 1 bar) due to this adsorbent is highly microporous. Moreover, this biochar is more resistant to the pyrolytic treatment in comparison to the biochars obtained from the commercial chitosan and chitosan in the form of film. CO<sub>2</sub>-adsorption studies at different temperatures have also shown that the adsorption capacity diminishes as the adsorption temperature increases, thus suggesting that the adsorption takes place by a physical process.https://www.mdpi.com/2073-4360/14/23/5240chitosanpyrolysisbiocharfreeze-dryingchitosan-filmsCO<sub>2</sub>-adsorption |
| spellingShingle | Isabel Barroso-Martín Juan Antonio Cecilia Enrique Vilarrasa-García Daniel Ballesteros-Plata Carmen Pilar Jiménez-Gómez Álvaro Vílchez-Cózar Antonia Infantes-Molina Enrique Rodríguez-Castellón Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes Polymers chitosan pyrolysis biochar freeze-drying chitosan-films CO<sub>2</sub>-adsorption |
| title | Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes |
| title_full | Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes |
| title_fullStr | Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes |
| title_full_unstemmed | Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes |
| title_short | Modification of the Textural Properties of Chitosan to Obtain Biochars for CO<sub>2</sub>-Capture Processes |
| title_sort | modification of the textural properties of chitosan to obtain biochars for co sub 2 sub capture processes |
| topic | chitosan pyrolysis biochar freeze-drying chitosan-films CO<sub>2</sub>-adsorption |
| url | https://www.mdpi.com/2073-4360/14/23/5240 |
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