【摘要】 采用正交实验法，以纳米TiO₂粉体为基底，中压氨气为氮源，在高压反应釜内利用氨气的还原性质优化TiO₂掺氮工艺，利用扫描电镜对掺氮前后的表面微观结构进行观察，通过XPS和XRD谱图对掺杂前后结构进行表征，并测试组装电池的光电性能。结果表明：能够有效控制纳米TiO₂氮粉体的氮掺杂，得到不同掺氮量的N-TiO₂。掺氮后的材料组装电池，其光电转化效率增强。更多还原

【Abstract】 On the basis of orthogonal experimental method, nano TiO₂ nitrogen doping process was optimized in terms of the reduction properties of ammonia in a high-pressure reactor, by using TiO₂ powder as the substrate and medium pressure ammonia as the nitrogen source. The surface microstructure before and after nitrogen doping was observed by SEM, and the structure before and after doping was characterized by XPS and XRD. Further, the photoelectric performance of the assembled battery was tested. The results indicated that the nitrogen doping of nano TiO₂ nitrogen powder can be effectively controlled and N-TiO₂ with different nitrogen doping amounts can be obtained. Assembling batteries with materials doped with nitrogen enhances their photoelectric conversion efficiency.更多还原