| 초록 |
Air pollution is a serious environmental issue that is continuously burdening our daily life. In general, the most concerning air pollutants are sulfur dioxide (SO2), nitrogen oxides (NO and NO2), volatile organic compounds (VOCs), particulate matters (PMs), carbon monoxide (CO), carbon dioxide (CO2), ozone, chlorofluorocarbons and trace heavy metals. In this study, a facile method to prepare hybrid cellulose acetate nanofibers containing TiO2 by emulsion electrospinning technique was developed for denitrification and the filtration of particulate matters (PMs). This work found that hybrid TiO2-CA nanofibers attributed to the photodecomposition of NO gas under UV irradiation. TiO2-CA nanofibers also showed excellent filtration efficiency of 99.5% for PM0.5 and photocatalytic efficiency of 78.6% for NO removal. The proposed TiO2-CA nanofibers, as a result, would be promising materials of highly efficient and sustainable air filters for industrial and home appliance systems. |
