Ultrafast Interfacial Charge Transfer Drives Photocatalysis in Heterojunctions Between Nitrogen-rich Graphitic Carbon Nitride (g-C3N5) and Amino-Functionalized Carbon Quantum Dots

Key Points

• The aim focuses on understanding the impact of electronic structure on photocatalytic efficiency in heterojunctions.
• Investigation of heterojunctions formed between g-C3N5 and carbon quantum dots.
• Analysis of the charge transfer dynamics and electronic properties of the materials.
• Assessment of photocatalytic activity under simulated light conditions.
• Demonstrated that ultrafast charge transfer occurred at the g-C3N5 and carbon quantum dot interface.
• Observed enhanced photocatalytic activity indicating the importance of electronic structure.
• Found that nitrogen-rich conditions in g-C3N5 contribute to narrower band gaps and improved electron dynamics.