| 초록 |
Since SO2 gas emitted from automobile exhaust and heating system have harmful effects on the environment and humans, it is necessary to develop a filter for adsorbing and removing SO2. In this study, nanofibers were fabricated by electrospinning device with a mixed solution of PEO and MWNT-g-PEI prepared by grafting-to process. The elemental analysis was carried out to confirm that SO2 was adsorbed in MWNT-g-PEI, and the content of sulfur(S) was increased from 0.19 At% to 6.87 At%. SEM observations showed nanofibers having an average diameter of about 171nm, and XPS analysis observation showed deconvoluted peaks of SO3 and SO4 at 168 eV and 169 eV, respectively. Based on the results of XPS analysis, the relative adsorption capacity was analyzed and increased by at least 21.8% and up to 70.7%. Acknowledgement: This work was supported by the Technology Development Program (S2489015) funded by the Ministry of SMEs and Startups(MSS, Korea). |
