CHAPTER 8:Emerging Applications for Graphitic Carbon Nitride-based Materials: CO2 Reduction as a Case Study

Capturing CO2 from the atmosphere and using it for the high-output synthesis of chemicals has great potential for various industrial applications. CO2 emission has increased by 45% since the industrial revolution in the 18th century, which has had a negative impact on the climate through the greenhouse effect. Therefore, there has been great interest in CO2 photocatalysis and photocatalysts in the last few decades. Several photocatalytic systems have been investigated for the reduction of CO2, among these, graphitic carbon nitride (gCN) is emerging as a highly promising semiconductor for the photocatalytic removal of CO2 due to its high chemical stability and unique band structure. This chapter summarizes the synthesis and basic properties of gCN-based photocatalysts and their applications and limitations in CO2 photocatalysis.