| 초록 |
The human have been faced the two severe crisis of global warming and shortage of fossil fuel due to dramtic increase in comsumed energy. So, the photoreduction of CO2 to valuable chemical fuel has been made attraction to consume the CO2 and produce the sustainable and clean energ by only using sun light and water. To increase the efficiency of photocatalyst, the graphene has been utilized with various semiconductor composites to enhance the ability for efficient electron separation. However, the reported graphene based photocatalyst exhibit the low photoefficiency of CO2 conversion. In this research, we design the CO2 conversion system with high adsorption and activation of CO2 to increase the reaction sites and affinity for CO2. Thus, we make the semiconductor wrapped by amine functionalized graphene followed by substitution for amine group on graphene surfaces which is the common CO2 adsorbent with high affinity of CO2. This photocatalyst system shows the improved CO2 affinities and high conversion rate for CO2 without any noble metals. |
