| 초록 |
The scope of this work was to control the surface functional groups of nanoporous carbons (NPs) by oxidizing agents treatments and to investigate the relation between oxygen functional groups and ammonia removal efficiency. The NPs were directly prepared from a cation exchange resin by the carbonization of a mixture with Ni acetate. N2/77 K adsorption, Boehm’s titrations, and X-ray photoelectron spectroscopy (XPS) analyses were employed to confirm the physicochemical properties of NPs. The ammonia removal efficiency was confirmed by temperature programmed desorption (TPD) technique. It was also found that the oxidation treatment led to an increase in ammonia removal efficiency of NPs, mainly due to an increase of acid oxygen functional groups (such as carboxyl) on NPs surfaces. |
