Rational design and fabrication of phase junction is an important way and strategy to enhance the photocatalytic performance. In this paper, rutile/anatase phase junction is obtained in rutile nanoparticles decorated anatase thin film by laser ablation. The hydrogen generation of rutile/anatase composite film is 49.6 μL, which is remarkably higher than that of both anatase thin film and rutile decorated layer. The quantity of phase junctions between rutile and anatase is considered as a key factor of photocatalytic improvement by varying the amount of rutile nanoparticles. Moreover, the excellent photocatalytic stability of rutile/anatase composite film is also exhibited.

合理设计和制造相接是提高光催化性能的重要途径和策略。在本文中，通过激光烧蚀在金红石纳米颗粒装饰的锐钛矿薄膜中获得金红石/锐钛矿相连接。金红石/锐钛矿复合膜的氢气产生量为49.6μL，明显高于锐钛矿薄膜和金红石装饰层的氢气产生量。通过改变金红石纳米颗粒的量，金红石和锐钛矿之间的相连接的数量被认为是光催化改进的关键因素。此外，还显示出金红石/锐钛矿复合膜的优异的光催化稳定性。