The Effect of the Modification of Carbon Spheres with ZnCl2 on the Adsorption Properties towards CO2
Ładowanie...
Data
2022-02
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
MDPI
Abstrakt
Zinc chloride and potassium oxalate are often applied as activating agents for carbon materials. In this work, we present the preparation of ZnO/carbon spheres composites using resorcinol-formaldehyde resin as a carbon source in a solvothermal reactor heated with microwaves. Zinc chloride as a zinc oxide source and potassium oxalate as an activating agent were applied. The effect of their addition and preparation conditions on the adsorption properties towards carbon dioxide at 0 degrees C and 25 degrees C were investigated. Additionally, for all tested sorbents, the CO2 sorption tests at 40 degrees C, carried out utilizing a thermobalance, confirmed the trend of sorption capacity measured at 0 and 25 degrees C. Furthermore, the sample activated using potassium oxalate and modified using zinc chloride (a carbon-to-zinc ratio equal to 10:1) displayed not only a high CO2 adsorption capacity (2.69 mmol CO2/g at 40 degrees C) but also exhibited a stable performance during the consecutive multicycle adsorption-desorption process.
Opis
Słowa kluczowe
carbon spheres, carbon dioxide adsorption, microwave reactor, zinc oxide, zinc chloride, adsorption
Cytowanie
Pełech Iwona, Staciwa Piotr, Sibera Daniel, Kusiak-Nejman Ewelina, Morawski Antoni W., Kapica-Kozar Joanna, Narkiewicz Urszula (2022). The Effect of the Modification of Carbon Spheres with ZnCl2 on the Adsorption Properties towards CO 2, Molecules, Vol. 27, iss. 4, pp. 1-20, no. art. 1387. http://hdl.handle.net/20.500.12539/2004