| 초록 |
To enhance anti-biofouling effect of reverse osmosis membranes, polyamide thin film composite with carbon nano-onions(NO) was fabricated. For their physicochemical and mechanical stabilities in the membranes, functional groups were introduced to NO in two ways; one contains aminated NO (NO-NH2) and the other contains acyl chloride-terminated NO (NO-COCl). Each functional group in both NO was reacted with m-phenylenediamine(MPD) or trimesoyl chloride(TMC) in the polyamide (PA) membranes, resulted in grafting NO with the membranes. The characterization of PA membranes containing NO was conducted by OM, FE-SEM, FT-IR and TGA. As a result, the PA membranes containing NO showed outstanding antibacterial activities with negligible decrease in rejection. Also, the membranes with functionalized NO showed more effective antibacterial properties and less decrease in rejection compared with the neat NO membrane. |
