| 초록 |
The use of fossil fuels is soaring to supply the energy used in our life and industry. As a result, exhaustion of fossil fuels and various environmental pollution problems are occurring. Among them, the problem of global warming due to CO2 is very serious, and the CCUS technology is getting attention. In particular, CO2 photoreduction technology using photocatalyst is an economical and environmentally friendly technology that can convert solar energy into fuel. In this study, TiO2, which is a typical photocatalyt, was controlled in the cubic form to improve the electron transporting ability and Li was added to increase the CO2 adsorption ability. The performance of CO2 photoreduction reaction was compared with the ratio of Li added, and a certain amount of Ag was added to increase the methane selectivity of the product. The physicochemical and optical properties of the catalysts were confirmed by XRD, TEM, SEM/EDS, PL, and UV/Vis. The gas resulting was confirmed by GC. |
