A novel plasmonic Ag decorated S-TiO_2−x nanorods are successfully fabricated under 700 °C calcination, then followed by an in-situ solid-state chemical reduction approach with NaBH₄ in a mild calcination (350 °C) and combined with photo-deposition approach. The resultant Ag/S-TiO_2−x sample with high crystallinity and narrow band gap of ∼2.39 eV, extends the photoresponse to near-infrared region. The visible-light-driven photocatalytic degradation rate of phenol and hydrogen production rate for Ag/S-TiO_2−x nanorods are as high as 98.67% and 209.2 µmol h⁻¹ g⁻¹, which is about 2 and 5 times higher than that of S-TiO₂. Especially, first-order reaction rate constant of Ag/S-TiO_2−x nanorods is 14 times higher than that of S-TiO₂. The excellent photocatalytic property can be attributed to the synergistic effect of Ti³⁺ self-doping, S doping and the enhanced surface plasmon resonance of Ag nanoparticles, which narrows the band gap, favors the visible light utilization, and promotes the separation of photogenerated charge carriers.

在700°C的煅烧条件下成功制备出新型的等离子Ag装饰的S-TiO ₂ - _x纳米棒，然后在温和的煅烧（350°C）下采用NaBH ₄原位固态化学还原方法，并与照片结合沉积法。所得的Ag / S-TiO ₂ - _x样品具有高结晶度，窄带隙约为2.39 eV，将光响应扩展到了近红外区域。Ag / S-TiO ₂ - _x纳米棒的可见光驱动的苯酚光催化降解率和产氢率分别高达98.67％和209.2 µmol h ^-1 g ^-1，分别是其的2倍和5倍。 S-TiO的₂。尤其是，Ag / S-TiO ₂ - _x纳米棒的一级反应速率常数比S-TiO ₂高14倍。优异的光催化性能可归因于Ti ³⁺自掺杂，S掺杂的协同作用以及增强的Ag纳米颗粒的表面等离子体共振，从而缩小了带隙，有利于可见光的利用，并促进了光生电荷的分离。运营商。