The carbon nanotubes (CNTs) have been combined with graphitic carbon nitride (g-C₃N₄) through the amidation reaction. The hybrid catalyst of g-C₃N₄-CNTs with well-defined and stable structure exhibits efficient catalytic performance (32.6 μmol h⁻¹) for photocatalytic H₂O₂ production in the presence of formic acid under visible light. The value of electron transfer during the oxygen reduction reaction (ORR) process obtained from the Koutecky-Levich plot for g-C₃N₄-CNTs (n = 1.96) is higher than that for g-C₃N₄ (n = 1.29), suggesting that the CNTs covalent combined with g-C₃N₄ can promote the electrons generation. The p-benzoquinone (PBQ) scavenger experiments, the electron spin resonance (ESR) signal and quantitative experiment of O₂⁻ results reveal that the negative shifts of the conduction band (CB) level from g-C₃N₄ to g-C₃N₄-CNTs can enhance the single-electron reduction of O₂ to O₂⁻ and further promote the sequential two-step single-electron O₂ reduction reaction to H₂O₂.

碳纳米管（CNT ）通过酰胺化反应与石墨碳氮化物（gC ₃ N ₄）结合。具有明确和稳定结构的gC ₃ N ₄ -CNTs杂化催化剂在甲酸存在下于可见光下表现出有效的催化性能（32.6μmolh ^-1），可用于光催化H ₂ O _2的生产。从Koutecky-Levich图获得的gC ₃ N ₄ -CNTs（n = 1.96）的氧还原反应（ORR）过程中的电子转移值高于gC ₃ N ₄的电子转移值（n = 1.29），表明与gC ₃ N ₄共价结合的CNT可以促进电子的产生。的p苯醌（PBQ）清除剂的实验中，电子自旋共振（ESR）信号和定量试验的ö ₂ ^-结果表明，该导带（CB）水平的负偏移从GC ₃ Ñ ₄至GC ₃ Ñ ₄ - CNT可以提高的O的单电子还原₂至ö ₂ ^- ，进一步推动连续两步单电子ö ₂还原反应至H ₂ ö₂。