ABSTRACT
This study determines the potential use of activated carbon obtained from agricultural waste, with a specific focus on activated corn cob. Because of its large surface area and porous shape, activated corn cob, a carbon-rich material derived from biomass pyrolysis, has attracted interest for its adsorption properties.
The carbonization of corn cobs at regulated pyrolysis temperatures is the first step in the experimental process. Then, the PKS is activated using a KOH solution to increase its surface area and porosity, and the flow rate is measured using a gas analyzer. In order to assess the physical and chemical characteristics of the resultant activated corn cob, a number of methods were used, including the Brunauer-Emmett-Teller (BET) analysis, scanning electron microscopy (SEM), Langmuir surface area estimation, DA method, and BJH adsorption method (Bade et al.,2022).
The results shows that the activated corn cob derived from agricultural waste exhibited significant adsorption capacity which is which is consistent with other studies (Ambaye et al., 2021). Also, the Langmuir surface area analysis was the best model to use as it gave the highest surface area of 948.963 m2/g. To summarize, the enhanced CO2 adsorption properties of corn cob can be attributed to its larger surface area, abundance of mesopores, and suitable pore width.
