In this letter, tungsten oxide(WO₃)/TiO₂ core-shell nanowires were prepared by depositing a layer of TiO₂ nanoparticles on the surface of WO₃ nanowires via a pulse laser deposition method. These TiO₂ nanoparticles are qusi-aligned wire-like structure on the surface of WO₃ nanowires. The number of laser pulses during the deposition adjusts the TiO₂ thickness. When used as photocatalyst, these core-shell nanowires have photocatalytic activity in the degradation of rhodamine B (RhB). The photo-induced electron-hole separation effect between WO₃ and TiO₂ contributes to the improvement of the photocatalystic activity. This makes these nanowire arrays having good potential in wastewater treatment.

本文通过脉冲激光沉积法在WO ₃纳米线表面沉积一层TiO ₂纳米颗粒，制备了氧化钨（WO ₃）/ TiO ₂核壳纳米线。这些TiO ₂纳米颗粒在WO ₃纳米线的表面上是准排列的线状结构。沉积期间的激光脉冲数调整TiO _2的厚度。当用作光催化剂时，这些核-壳纳米线在若丹明B（RhB）的降解中具有光催化活性。WO ₃与TiO ₂之间的光致电子-空穴分离效应有助于改善光催化活性。这使得这些纳米线阵列在废水处理中具有良好的潜力。