RT Journal Article
T1 Modification of the Textural Properties of Chitosan to Obtain Biochars for CO2-Capture Processes
A1 Barroso-Martín, Isabel
A1 Cecilia-Buenestado, Juan Antonio
A1 Vilarrasa García, Enrique
A1 Ballesteros-Plata, Daniel
A1 Jiménez Gómez, Carmen Pilar
A1 Vílchez-Cózar, Álvaro
A1 Infantes-Molina, Antonia
A1 Rodríguez-Castellón, Enrique
K1 Dióxido de carbono-Absorción y adsorción
AB 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 CO2-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. CO2-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.
PB IOAP-MDPI
YR 2022
FD 2022-12-01
LK https://hdl.handle.net/10630/25930
UL https://hdl.handle.net/10630/25930
LA eng
NO Barroso-Martín I, Cecilia JA, Vilarrasa-García E, Ballesteros-Plata D, Jiménez-Gómez CP, Vílchez-Cózar Á, Infantes-Molina A, Rodríguez-Castellón E. Modification of the Textural Properties of Chitosan to Obtain Biochars for CO2-Capture Processes. Polymers. 2022; 14(23):5240. https://doi.org/10.3390/polym14235240
NO This research was funded by Ministerio de Ciencia e Innovación (Spain), project TED2021-130756B-C31, and Junta de Andalucía, projects P20_00375 and UMA18-FEDERJA-126, and FEDER funds. Partial funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 25 ene 2026