采用二次氧化法制得二氧化钛 (TiO2) 纳米管 (NTs) 阵列 (TiO2NTs), 并采用氮 (N) 、铁 (Fe) 对其进行改性, 制得N、氧化铁共掺杂TiO2NTs阵列 (N-Fe2O3N/TiO2NTs), 并对N-Fe2O3N/TiO2NTs的化学组成、结构和催化性能进行测试.研究结果表明, 在0.075mol/L浸渍浓度条件下制得的N-Fe2O3N/TiO2NTs有最优的光吸收能力, 其在500nm的最高吸光度1.5Abs;主要还原产物一氧化碳 (CO) 产率最高可达140×10-6/ (cm2·h), 比纯TiO2NTs的产率提高了约8倍, 光电流效率达到87.45％.“,”Titanium dioxide (TiO2) nanotube (NTs) array (TiO2 NTs) was prepared by the secondary oxidation method, and modified by nitrogen (N) and iron (Fe) to prepare N-Fe2O3/TiO2 NTs array (N-Fe2O3/TiO2 NTs).The chemical composition, structure and catalytic performance of N-Fe2O3/TiO2 NTs were tested.The results showed that N-Fe2O3/TiO2 NTs had the optimal light absorption capacity under the condition of 0.075 mol/L immersion concentration, and its maximum absorbance at 500 nm was 1.5 abs.The yield of carbon monoxide (CO), the main reduction product, was up to 140×10-6/ (cm2·h), about 8 times higher than that of pure TiO2 NTs, and the photocurrent efficiency reached 87.45％.