| 초록 |
Graphitic carbon nitride(g-C3N4) is a promising organic photocatalyst due to its visible-light responsive and thermo-chemically stable nature. Therefore, it has been used for many photocatalytic reactions including water splitting. Recently, its application has also expanded to CO2 conversion. As CO2 in natural state is extremely stable, it needs to be activated to achieve CO2 reduction. In this respect, g-C3N4 has an advantage as it is rich in nitrogen that can bind CO2 as activation sites. As current techniques are far from practical levels, we will try to enhance the photocatalytic activity of g-C3N4 for CO2 reduction by controlling its layer thickness, and introducing edge defects, which act as CO2 active sites. Moreover, when its nanosheets are used as a composite with graphene, the composite is expected to show decreased charge recombination rate for even better performance. |
