| 초록 |
Removal of metal ions in water for industrial use, called water softening, is an important procedure since ions are known to cause significant problems on operation and maintenance of equipment or piping in facilities. Though ion exchange or chelate resin is one of the widely used methods for desalination, it has some limitations in ion selectivity and regeneration. In this research, sulfonamide-derived cation capturing system is suggested as an alternative to relieve these drawbacks. Sulfonamide derivatives show sharp transition from charged to uncharged form at certain pH, which alleviates the condition of regeneration. Finally, their metal ion capturing capacity in actual circumstances and regeneration property in moderate acidic pH were verified. In conclusion, we confirmed the potential of these sulfonamide-functionalized structures to be used for water treatment, which can overcome the disadvantages of conventional water softening system. |
