| 초록 |
Landfilling and incineration of PVC produces highly toxic and carcinogenic by-products that threaten the ecosystems and human health. However, there is still a lack of proper methods for waste PVC recycling. Therefore, developing feasible ways for waste PVC recycling is urgently needed. In this study we prepared a polyethylenimine crosslinked polyvinyl chloride (PEI/PVC) membrane and tested its removal efficiency for reactive yellow 2, a widely used reactive dye. The PEI/PVC membrane was characterized by FTIR, FE-SEM, TGA, tensile analysis, water contact angle (WCA) measurement. The FTIR analysis confirmed that the PEI/PVC membrane was successfully prepared. The FE-SEM images show that the nanofibers are compact with an average fiber diameter of 181 nm. The TGA results showed that the membrane was able to remain stable in wastewater below 150°C. The tensile analysis demonstrated that the PEI/PVC membrane has good mechanical strength. The WCA analysis showed that the membrane was hydrophilic. The dynamic adsorption and reusability studies confirmed that the PEI/PVC membrane was a recyclable membrane for efficiently purifying wastewater containing reactive dyes |
