Furfuryl alcohol-derived carbon monoliths for CO2 capture: adsorption isotherm and kinetic study. (September 2019)

• Record Type: Journal Article
• Authors: Singh, J; Basu, S; Bhunia, H
• Is Part Of: IOP conference series. Volume 625(2019)
• Publication Date: 2019-09
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/625/1/012014
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Porous carbon monoliths have been synthesized using furfuryl alcohol as a carbon precursor in the nanocasting technique. The highest surface area of 1225 m 2 g −1 was found for the carbon monolith exhibited the micropore volume of 0.85 cm 3 g −1 . The various functional groups have been obtained on the surface of the adsorbent which increases its basicity as confirmed from the XPS analysis. The dynamic CO2 uptake was 1.0 mmol g −1 at 30°C using temperature swing adsorption set up under 12.5% CO2 flow. The effect of various adsorption temperatures along with CO2 concentrations on the adsorption capacity was also investigated. The increase in the CO2 uptake capacity by rising the temperature from 30°C onwards to 100°C confirms the involvement of exothermic and physisorption process. Also, the experiments for five adsorption-desorption cyclic runs were conducted for the regeneration study, indicating the good stability and reusabilty of the samples.