This work focuses on the charge state modulation from a controllable metal-semiconductor energetic alignment. Pt nanoparticles on rutile TiO₂ are positively charged under visible light condition by synergetic charge separation. The extent and rate of charge separation are further enhanced via increased band bending at the TiO₂ interface, which was induced by modulating the fermi level of Pt nanoparticles. Performance of photocatalytic oxidation was deeply related to the charge separation rate.

中文翻译：

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金属半导体系统的能带对准调制，用于增强电荷分离，与光催化性能直接相关

这项工作集中在可控金属-半导体高能对准的电荷状态调制上。通过协同电荷分离，金红石TiO ₂上的Pt纳米颗粒在可见光条件下带正电。电荷分离的程度和速率通过增加TiO ₂界面处的能带弯曲而进一步提高，这是通过调节Pt纳米粒子的费米能级引起的。光催化氧化的性能与电荷分离率密切相关。