In this paper, we show a synergistic effect of polychromatic radiation on the visible light activity of a TiO₂ photocatalyst doped with nitrogen. This effect consists in the fact that N-doped TiO₂ has no photocatalytic activity under red light, but a combination of blue and red lights enhances the utilization of blue light in the photocatalytic oxidation process and substantially increases the photocatalytic activity of N-doped TiO₂. This study shows the great potential of N-doped TiO₂ photocatalysts for efficient oxidative degradation of pollutants under solar light, which is a polychromatic radiation with a wide range of wavelengths.

中文翻译：

---

多色辐射对N掺杂TiO ₂光催化剂可见光活性的协同效应

在本文中，我们显示了多色辐射对掺氮的TiO ₂光催化剂可见光活性的协同作用。该效果在于以下事实：N掺杂的TiO ₂在红光下不具有光催化活性，但是蓝光和红光的组合提高了光催化氧化过程中蓝光的利用率，并大大提高了N掺杂的TiO 2的光催化活性。₂。这项研究表明，N掺杂的TiO ₂光催化剂具有在太阳光下有效氧化降解污染物的巨大潜力，太阳光是一种波长范围很宽的多色辐射。