| 초록 |
Due to the continuous demand for masks caused by the prolonged COVID-19, a great deal of waste masks made of recalcitrant plastics have accumulated in nature, causing environmental and societal problems in the waste management process for smart cities. In order to tackle this issue, metal-oxide catalytic pyrolysis process was developed. The catalyst was prepared using nickel and iron through the impregnation method in which metal oxide (alumina (Al2O3) and zeolite (ZSM-5)) were adopted as a support. Carbon nanomaterials were observed on the nickel-doped metal oxide catalyst surface, and a higher concentration of hydrogen gas was detected in the produced gas when nickel-iron doped bimetallic catalysts were used. These findings are expected to contribute to the development of sustainable plastic recycling technology aimed at creating value-added products in connection with the government's waste upcycling project. |
