In this work we analyze the photocatalytic performance of Mⁿ⁺ (MCu, Ni, Zn, Mn) - g-C₃N₄ materials in toluene photo-oxidation under UV and Sunlight-type illumination conditions. The characterization of the solids showed that Cu and Mn containing samples have an oxide type environment, while Ni has a hydroxide type and Zn shows an oxynitride type local order. The photo-activity of the samples under UV and sunlight excitation(s) was evaluated in terms of activity and selectivity, and the subsequent calculation of the quantum efficiency. Optimum activity was obtained with the Zn-containing catalyst. The charge carrier(s) handling and fate through interfaces and recombination was measured and correlated with the structural characterization of the solids. This indicates that the interface contact between the Zn oxynitride and carbon nitride components has significant influence in charge carrier processes and it is at the core of the good photocatalytic properties owned by this sample.

在这项工作中，我们分析了M ^{n +}（M Cu，Ni，Zn，Mn）-gC ₃ N ₄的光催化性能。紫外线和日光型照明条件下甲苯光氧化中的材料。固体的特征表明，含Cu和Mn的样品具有氧化物型环境，而Ni具有氢氧化物型，而Zn具有氧氮化物型局部顺序。根据活性和选择性以及随后的量子效率计算，评估了样品在紫外线和阳光激发下的光活性。使用含锌催化剂可获得最佳活性。测量了电荷载体的处理以及通过界面和重组的命运，并将其与固体的结构表征相关联。