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- Title
Enhancement of CO<sub>2</sub> adsorption on activated carbons produced from avocado seeds by combined solvothermal carbonization and thermal KOH activation.
- Authors
Siemak, Joanna; Michalkiewicz, Beata
- Abstract
A new strategy for ultramicroporous activated carbons production from avocado seeds was developed. Combined solvothermal carbonization and thermal KOH activation were conducted. Solvothermal carbonizations were performed in a stainless-steel autoclave lined with Teflon at the temperature of 180 °C for 12 h in three different liquids (water, methanol, isopropyl alcohol). Chars were activated by KOH. The carbonization combined with activation took place in the oven at 850 °C for 1 h. All the samples were very good CO2 sorbents. The highest CO2 adsorption at a pressure of 1 bar was achieved for activated carbon produced using isopropanol. The best carbon dioxide adsorption was equal to 6.47 mmol/g at 0 °C and 4.35 mmol/g at 20 °C.
- Subjects
ACTIVATED carbon; CARBON dioxide adsorption; AVOCADO; CARBONIZATION; METHYLENE blue; SEEDS; ISOPROPYL alcohol
- Publication
Environmental Science & Pollution Research, 2024, Vol 31, Issue 28, p40133
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-023-28638-y