The structural, optical, and photocatalytic properties of TiO₂ and Ag–TiO₂ thin films grown by a hydrothermal method were studied by using an x-ray diffractometer, scanning electron microscope, energy-dispersive x ray, and UV–vis spectroscopy. The results indicated that all films were of single-phase and the Ag presence enhanced catalytic and water-splitting performances in the visible light region. In particular, the methylene blue solution was disintegrated up to 99% after 12 and 8 h for TiO₂ and Ag–TiO₂ films, respectively. Meanwhile, the splitting efficiency increased from 0.3% for TiO₂ to 1% for Ag–TiO₂. These performances demonstrate the great potential of Ag–TiO₂ films in photocatalytic and water-splitting applications.

中文翻译：

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TiO2和Ag-TiO2薄膜在可见光区的光催化和水分解性能

使用X射线衍射仪、扫描电子显微镜、能量色散X射线和紫外-可见光谱研究了通过水热法生长的TiO ₂和Ag-TiO ₂薄膜的结构、光学和光催化性能。结果表明，所有薄膜都是单相的，Ag 的存在增强了可见光区域的催化和水分解性能。特别是，对于 TiO ₂和 Ag-TiO ₂薄膜，亚甲蓝溶液在 12 小时和 8 小时后分解率高达 99% 。同时，分裂效率从 TiO _{2 的}0.3% 增加到Ag-TiO _{2 的}1% 。这些性能证明了 Ag-TiO ₂的巨大潜力 薄膜在光催化和水分解应用中。