Szczegóły publikacji
Opis bibliograficzny
Effect of thermal treatment on the structure and $CO_2$ adsorption capacity of biochar from chicken manure and onion peels / Wojciech JERZAK, Barbara Dutka, Krystian SOKOŁOWSKI, Aleksandra WILK, Joanna CHWIEJ, Marcin GAJEK, Izabela KALEMBA-REC, Małgorzata CIERPIŃSKA, Aneta MAGDZIARZ // Clean Technologies and Environmental Policy ; ISSN 1618-954X . — 2026 — vol. 28 iss. 10 art. no. 244, s. 1-16. — Bibliogr. s. 15-16, Abstr. — Publikacja dostępna online od: 2026-09-01
Autorzy (9)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 170024 |
|---|---|
| Data dodania do BaDAP | 2026-10-08 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10098-026-03598-2 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Clean Technologies and Environmental Policy |
Abstract
This study investigates the thermal conversion of chicken manure and onion peels into biochars with tailored properties for CO2 adsorption. The process was conducted at 700, 800 and 900 °C under inert atmosphere. The resulting biochars were characterised using Fourier-Transform Infrared Spectroscopy, X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Scanning Electron Microscopy, X-ray Photoelectron Spectroscopy (XPS), Raman spectroscopy, nitrogen sorption analysis, and CO2 adsorption measurements. Increasing pyrolysis temperature enhanced carbonisation, reduced heteroatom content, and promoted pore development, particularly in onion peels-derived in biochars. Nitrogen sorption analysis revealed the development of mesoporous and microporous structures, with the biochar derived from onion peels at 900 °C exhibiting the highest specific surface area (109.8 m2/g). However, the CO2 adsorption capacity showed divergent trends: it correlated with surface area development in chicken manure biochars, whereas onion-peel-derived biochars showed a non-monotonic relationship, with the 700 °C sample having the highest adsorption capacity (26.6 cm3/g at 100 kPa). In contrast, chicken manure biochars exhibited increased CO2 adsorption capacity with increasing pyrolysis temperature, which was associated with the development of micropores and the presence of calcium-rich mineral phases, identified by XRD and XRF analyses. Raman and XPS analyses indicated progressive structural ordering and deoxygenation with increasing pyrolysis temperature. The results demonstrate that CO2 adsorption in biochars derived from onion peels is mainly governed by pore-filling mechanisms, while mineral-assisted interactions significantly contribute to CO2 capture in chicken manure biochars.
