2D MXene-derived Nb 2 O 5 /C/Nb 2 C/g-C 3 N 4 heterojunctions for efficient nitrogen photofixation

Novel 2D MXene-derived Nb 2 O 5 /C/Nb 2 C/g-C 3 N 4 showed a high nitrogen reduction rate in water (0.365 mmol h −1 g cat −1 ); the nitrogen reduction efficiency could be further promoted 2.5 times (0.927 mmol h −1 g cat −1 ) with the optimized pH of 9.