Due to its wide band gap and low photogenerated carrier separation efficiency, TiO has an undesirable photocatalytic activity. In the present work, BiOCl was hydrothermally deposited on TiO and BiOCl/TiO composites with different ratios were obtained. The results show that 30 % BiOCl/TiO has the best performance of 1354.94 μmolgh, which is 18.4 times than pure TiO and 73.1 times than pure BiOCl. The significant increase in the photocatalytic efficiency of BiOCl/TiO composites is attributed to the reduction of their bandgap width and the fast separation of photogenerated electron-hole pairs. This work brings a new idea to increase the photocatalytic hydrogen production capability of TiO.

中文翻译：

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BiOCl 改性 TiO2 基催化剂通过促进光生电子空穴分离增强可见光下的产氢性能


由于其宽带隙和光生载流子分离效率低，TiO 具有不理想的光催化活性。在本工作中，将 BiOCl 水热沉积在 TiO 上，得到不同比例的 BiOCl/TiO 复合材料。结果表明，30% BiOCl/TiO 的性能最佳，为 1354.94 μmolgh，是纯 TiO 的 18.4 倍，是纯 BiOCl 的 73.1 倍。 BiOCl/TiO复合材料光催化效率的显着提高归因于带隙宽度的减小和光生电子空穴对的快速分离。这项工作为提高TiO光催化产氢能力带来了新思路。