Heterojunction photocatalysts of g-C₃N₄/Bi₄O₅I₂ were designed through the solvothermal method. A series of characterizations were used to analyze the structure, morphology, and optical and electronic characteristics of g-C₃N₄/Bi₄O₅I₂ composite. Bi₄O₅I₂ was successfully dispersed on the surface of g-C₃N₄. The 3 wt%-g-C₃N₄/Bi₄O₅I₂ catalyst had the highest photocatalytic activity in eutrophic water. The degradation efficiency of chemical oxygen demand (COD_Mn), total nitrogen (TN), and chlorophyll a (Chl-a) was as high as 90.1%, 60.2%, and 66.1%, respectively. Based on the band structure analysis, the purification can be attributed to the transfer and separation of holes (h⁺) and electrons (e⁻) between g-C₃N₄ and Bi₄O₅I₂.

通过溶剂热法设计了gC ₃ N ₄ / Bi ₄ O ₅ I _2的异质结光催化剂。一系列表征用于分析gC ₃ N ₄ / Bi ₄ O ₅ I ₂复合材料的结构，形态以及光学和电子特性。Bi ₄ O ₅ I ₂成功地分散在gC ₃ N ₄的表面上。3 wt％-gC ₃ N ₄ / Bi ₄ O ₅ I ₂催化剂在富营养化水中具有最高的光催化活性。化学需氧量（COD _Mn），总氮（TN）和叶绿素a（Chl-a）的降解效率分别高达90.1％，60.2％和66.1％。基于所述带结构分析，纯化可以归因于传输和空穴的分离（H ⁺）和电子（e ^-）GC之间₃ Ñ ₄和Bi ₄ ø ₅我₂。