Removal of NO using surface modified activated carbon fiber (ACF) by impregnation and heat-treatment of propellant waste

摘要

The surface of activated carbon fiber was modified by impregnation and heat-treatment of propellant waste to introduce nitrogen functional groups such as pyridines, pyridones and pyrrols. The pore structure and specific surface area of those modified ACFs were slightly changed; however, the NO removal capacity of the surface modified ACF by propellant waste increased about twice that of the as-received ACF due to the addition of chemical adsorption by nitrogen functional groups. Propellant waste can be used as an ACF surface modifier for the removal of NOx.