Rutile TiO₂ nanorod arrays vertically aligned on conductive fluorine-doped tin oxide glass are optimized for photocatalysis in terms of the density and diameter of nanorods by tuning the concentration of Ti precursor and reaction time during the hydrothermal process. Quantum dots (QDs) of V₂VI₃( V = Bi; VI = Se, Te) topographic insulators are then employed as sensitizers to enhance the visible-light response of TiO₂. Electrochemical measurements show that the decoration of Bi₂Se₃ or Bi₂Te₃ significantly increases the photocurrent due to the enhanced light harvesting properties and the charge carrier separation capability mediated by the topographic isolation effect of V₂VI₃ QDs. Photoelectrocatalytic (PEC) activity evaluation is conducted towards the decoloration of azo dyes, including methyl orange and methylene blue under the sunlight irradiation. The elaborated Bi₂Se₃/TiO₂ nanorod array exhibits the superior PEC performances, presenting shows great potentials in environmental remediation.

通过调节水热过程中Ti的前驱物浓度和反应时间，在纳米碳棒的密度和直径方面优化了垂直排列在导电氟掺杂氧化锡玻璃上的金红石TiO ₂纳米棒阵列的光催化性能。然后采用V ₂ VI ₃（V = Bi; VI = Se，Te）形貌绝缘体的量子点（QDs）作为敏化剂，以增强TiO ₂的可见光响应。电化学测量表明，Bi ₂ Se ₃或Bi ₂ Te ₃的装饰由于V ₂ VI ₃ QD的形貌隔离效应增强了光收集性能和电荷载流子分离能力，因此显着增加了光电流。光电催化（PEC）活性评估是针对在阳光照射下偶氮染料（包括甲基橙和亚甲基蓝）的脱色。精心制作的Bi ₂ Se ₃ / TiO ₂纳米棒阵列表现出优异的PEC性能，显示出在环境修复方面的巨大潜力。