A novel 3D E-Fe₂O₃-Pi-MoS₂ film was fabricated for water oxidation and environmental remediation. The nonmetal doping with phosphorus and vertically oriented MoS₂ nanosheets were successfully constructed on Fe₂O₃ substrate, and the electrochemical modification further enhanced its photoelectrocatalytic (PEC) activity. The photocurrent density of E-Fe₂O₃-Pi-MoS₂ for water oxidation was 30 times or 19.4 times higher than that of Fe₂O₃ under visible light or UV–vis light illumination at 0.45 V vs. Ag/AgCl, respectively. E-Fe₂O₃-Pi-MoS₂ film also showed excellent PEC activity for phenol degradation (93.73%) and good stability. Hydroxyl radicals and holes were main active species. The remarkable activity of E-Fe₂O₃-Pi-MoS₂ film could be attributed to the synergistic effects of nonmetal doping with phosphorous, vertically oriented MoS₂ nanosheets fabrication and the electrochemical modification treatment, which significantly improved the charge transfer and enhanced the separation efficiency of photogenerated carriers. This work provides an effective, environmentally friendly, and low-cost semiconductor materials for sustainable energy and environmental application.

制备了新颖的3D E-Fe ₂ O ₃ -Pi-MoS ₂薄膜用于水氧化和环境修复。在Fe ₂ O ₃衬底上成功构建了磷和垂直取向的MoS ₂纳米片的非金属掺杂，电化学修饰进一步增强了其光电催化活性。E-Fe的光电流密度₂ ö ₃ -Pi-MOS ₂用于水氧化为30倍或19.4倍比Fe高₂ ö ₃ 0.45 V，相对于银/氯化银下可见光或紫外-可见光照明，分别。铁₂ O₃ -Pi-MoS ₂膜还显示出优异的苯酚降解PEC活性（93.73％）和良好的稳定性。羟基自由基和空穴是主要的活性物种。E-Fe ₂ O ₃ -Pi-MoS ₂薄膜的显着活性可归因于非金属掺杂与磷，垂直取向的MoS ₂纳米片的制备和电化学改性处理的协同作用，从而显着改善了电荷转移并增强了光生载流子的分离效率。这项工作为可持续能源和环境应用提供了有效，环保和低成本的半导体材料。