| 초록 |
The use of graphene oxide(GO, hereafter) for the water filtration is receiving attention as a strategy to solve the microplastic pollution. In this study, the microplastic filtration ability and COD reduction rates of the GO powders are investigated. The effect of the amounts of GO and flowrate of the filtrated seawater has been studied in the present work. This study also identified the antibacterial performance of GO using samples of Staphylococcus aureus and Pneumococcus. The GO was prepared by the Hummer’s method and observed using the SEM, BET, and XPS methods. The experiment revealed that the higher amounts of GO results in better COD reduction rates (4 g GO sample acquired the highest reduction rate amounts to 40%). The lower wastewater flowrates exhibited better microplastic filtration (10 liter/min sample had a 5% higher average filtration rate than the 20 liter/min sample). GO filters also showed antibacterial performance with a 99% removal rate for both bacteria specimens. |
