GaN-ZnO solid solution (labeled as GN-ZO) was prepared by a novel method using melamine as a nitrogen source and then GaN-ZnO/g-C₃N₄ composite (denoted as GN-ZO/CN) was synthesized by the polymerization of melamine in the presence of GN-ZO. The photodegradation of methylene blue (MB) on GN-ZO/CN was assessed, which shows that the degradation efficiency of MB over GN-ZO/CN reaches up to 98.1% after 5 h. This is due to a reduced recombination of photogenerated electrons and holes in the composite. The photocatalytic activity of GN-ZO/CN is stable after 4 cycles. The mechanism for photocatalytic degradation of MB on GN-ZO/CN is proposed.

采用三聚氰胺作为氮源，通过新颖的方法制备了GaN-ZnO固溶体（标记为GN-ZO），然后通过聚合反应合成GaN-ZnO / gC ₃ N ₄复合材料（命名为GN-ZO / CN）。 GN-ZO存在下的三聚氰胺。对亚甲基蓝（MB）在GN-ZO / CN上的光降解进行了评估，结果表明5 h后，MB在GN-ZO / CN上的降解效率达到了98.1％。这是由于复合物中光生电子和空穴的复合减少。GN-ZO / CN的光催化活性在4个循环后稳定。提出了MB在GN-ZO / CN上光催化降解的机理。