Modification, Production, and Methods of KOH-Activated Carbon

This review covers research on the use of potassium hydroxide (KOH) to produce and modify activated carbon. The methods employed for activation by considering the activation process, carbonization, temperature, activation time, and KOH ratio to material are described and how the surface area, surface morphology, and functional groups are affected by the KOH ratio. Characterization techniques and preparation conditions are summarized. The activated carbon pore structure mainly depends on the burn-off size and the time for activation is linked to the overall activation reaction rate. The increase in surface area and pore size depends on the ratio of KOH, showing that KOH affects the surface chemistry of the activated carbon. The sorbent-sorbate interactions are strongly influenced by different parameters, which were also calculated in this review and used to evaluate such interactions.

Automated summary

This review explores the use of potassium hydroxide (KOH) in the production and modification of activated carbon. The activation process, carbonization, temperature, activation time, and KOH ratio are discussed, as well as their effects on surface area, surface morphology, and functional groups. The study finds that the pore structure, surface area, and pore size of activated carbon depend on the ratio of KOH, indicating that KOH influences the surface chemistry of the material. Additionally, the review calculates and evaluates the impact of various parameters on sorbent-sorbate interactions.