Abstract The tiny Ag nanoparticles-uniformly decorated Ti3+ self-doped porous black TiO2 pillars (Ag-TPBTPs) are prepared, which show obvious surface plasmon resonance (SPR) and extend the photoresponse to visible light and near-infrared region (∼1500 nm). The Ag-TPBTPs exhibit excellent solar-driven photocatalytic activities by mineralizing of high-toxic 2,4-dichlorophenol (∼99%), which is three times higher than that of the pristine TiO2. The remarkable solar-driven photocatalytic performance can be ascribed to the porous pillars structure offering more surface active sites, the self-doped Ti3+ and SPR effect of Ag nanoparticles improving the utilization of solar light, and enhancing the spatial separation efficiency of photogenerated charge carriers.

中文翻译：

---

Ag纳米粒子修饰的Ti 3+自掺杂多孔黑色TiO 2 柱的表面等离子体共振增强太阳能驱动光催化性能

摘要 制备了微小的 Ag 纳米粒子 - 均匀装饰的 Ti3+ 自掺杂多孔黑色 TiO2 柱（Ag-TPBTPs），其表现出明显的表面等离子体共振（SPR）并将光响应扩展到可见光和近红外区域（~1500 nm）。 . Ag-TPBTPs 通过矿化高毒性 2,4-二氯苯酚（~99%）表现出优异的太阳能驱动光催化活性，比原始 TiO2 高三倍。卓越的太阳能驱动光催化性能可归因于提供更多表面活性位点的多孔柱结构、自掺杂 Ti3+ 和 Ag 纳米粒子的 SPR 效应提高了太阳光的利用率，并提高了光生载流子的空间分离效率。