Mounting evidence highlights the negative impacts of neonicotinoids on non-target organisms and ecosystem, yet there are a few of methods to address the residual neonicotinoids in environment. Herein, series of sulfur and oxygen co-doped carbon nitride (SOCNx) were successfully synthesized via one-step thermal polymerization and applied in photodegradation of multi-neonicotinoids (dinotefuran, acetamiprid, clothianidin, thiacloprid, imidacloprid, nitenpyram and thiamethoxam) simultaneously for the first time. Unique tubular structure was observed at the specific doping ratio, which enhanced both mass transfer and specific surface area of graphitic carbon nitride (g-C₃N₄). The doping process changed the morphology of g-C₃N₄ materials and also affected its photocatalytic performance. The degrading rate of optimized material (SOCN₈) for nitenpyram could surpass 90% just in 30 min under visible light in aqueous matrix. The degradation for target insecticide increased maximum efficiency of 57.6% compared to bulk g-C₃N₄. Moreover, the possible mechanism of the degradation process was proposed. The results revealed that photon-induced hole (h⁺) was the primary active species during the degradation of seven investigated neonicotinoids. Moreover, the SOCN₈ showed excellent recyclability after four consecutive cycles, which implied promising applications for pesticide-contaminated water remedy.

越来越多的证据表明，新烟碱类物质对非目标生物和生态系统具有负面影响，但是有几种方法可以解决环境中残留的新烟碱类物质。在此，通过一步热聚合成功合成了一系列硫和氧共掺杂的氮化碳（SOCNx），并将其同时用于多种新烟碱类化合物（二甲呋喃，对乙酰氨基吡啶，可比丁，噻虫啉，吡虫啉，尼替吡喃和噻虫嗪）的光降解。第一次。在特定的掺杂比例下观察到独特的管状结构，这增强了石墨氮化碳（gC ₃ N ₄）的传质和比表面积。掺杂过程改变了gC ₃ N ₄的形貌材料也影响了它的光催化性能。在含水基质中可见光下，仅30分钟内，乙胺吡喃的优化材料（SOCN ₈）的降解率可超过90％。与块状gC ₃ N ₄相比，目标杀虫剂的降解提高了最高效率57.6％。此外，提出了降解过程的可能机理。结果表明，光子诱导的空穴（h ⁺）是7种新烟碱类化合物降解过程中的主要活性物质。此外，SOCN ₈在连续四个循环后显示出极好的可回收性，这意味着在农药污染的水处理中应用前景广阔。