| 초록 |
With the Increasing industrial oily wastewater and the frequent oil spill accidents, selective removal of waste oils from oil/water mixture continues to be the hot issue of research. Various materials such as sponges, metal meshes, and fabrics have been used for oil/water separation. Although considerable efforts have been focused on fabricating sponge composites for oil/water separation, development of novel approaches to enhance the performance is still necessary. In this respect, polyurethane (PU) sponge was used as templates and coated with carbon nanotube (CNT), polydopamine (PDA), and hydrophobic CaCO3 in order for fabricating sponge composites. These stepwise coating led to the increase in specific surface areas and flame retardant property of the PU sponge composites. Our sponge composites possessing flame retardant property were successfully used for application in selective oil absorption from oil/water mixture. |
