Preparation of Paper from Pitch-based Activated Carbon Fibers and Adsorption Characteristics

In this work, we have prepared the filter papers with the pitch-based activated carbon fibers and the binder fibers using wet-laid process. The influence of the binder fiber on the porosity of the filter papers has been investigated by using nitrogen adsorption isotherms at 77 K and a scanning electron microscope (SEM). As a result, the specific surface area has increased with an decrease in the content of binder fiber. It has been shown that the optimum ratio of pitch-based activated carbon fibers and the binder fibers is 70: 30, resulting in high porosity, excellent bonding strength, large specific surface area (650.4 m(2)/g) and high noxious gas removal efficiency ( 86.9%). In addition, it has been observed that the mean pore size distribution of the fiber papers has not been affected by the binder fiber.