The efficacy of treatment with hydrogen and Ag-Cu co-deposition on TiO₂ photocatalysts has been investigated computationally and experimentally. The hydrogenated Ag-Cu with co-loaded TiO₂ (H:(Ag-Cu/TiO₂)) achieved a photoactivity about 110 times that of pristine TiO₂, which corresponds to a rate of 1.16 mmol h⁻¹ g⁻¹ for hydrogen generation. Soft X-ray spectra and quantum-chemical calculations indicate that the notable promotion of photoactivity on H:(Ag-Cu/TiO₂) is ascribable to the synergy between new electronic states and a lattice distortion. The soft X-ray absorption spectra (XAS) indicated that the TiO₆ octahedral symmetry and the Ti 3d- orbital orientation are significantly affected by the Ag-Cu decoration and the hydrogenation treatment. The mechanisms involved in this photocatalysis were studied with soft XAS in situ, which showed that the photoexcited electrons transfer from the bimetallic Ag-Cu to the TiO₂ conduction band as the photoresponse of this composite photocatalyst. The strategy of coupling hydrogenation with bimetallic Ag-Cu onto TiO₂-based photocatalysis provides a facile and promising solution to other environmental and energy applications.

已经通过计算和实验研究了用氢和Ag-Cu共沉积对TiO _{2光催化剂进行处理的效果。}具有共同负载的 TiO ₂ (H:(Ag-Cu/TiO ₂ )) 的氢化 Ag-Cu 的光活性约为原始 TiO ₂的 110 倍，对应于 1.16 mmol h ^-1 g ^-1的速率氢气的产生。软 X 射线光谱和量子化学计算表明，H:(Ag-Cu/TiO ₂ ) 上光活性的显着促进归因于新电子态和晶格畸变之间的协同作用。软X射线吸收光谱(XAS)表明TiO ₆八面体对称性和 Ti 3d- 轨道取向受到 Ag-Cu 装饰和氢化处理的显着影响。用软XAS原位研究了该光催化的机理，结果表明，作为该复合光催化剂的光响应，光激发电子从双金属Ag-Cu转移到TiO _2导带。将氢化与双金属 Ag-Cu 耦合到基于 TiO ₂的光催化上的策略为其他环境和能源应用提供了一种简便且有前景的解决方案。