[Co(bpy)<sub>3</sub>]<sup>3+/2+</sup> and [Co(phen)<sub>3</sub>]<sup>3+/2+</sup> Electron Mediators for Overall Water Splitting under Sunlight Irradiation Using Z-Scheme Photocatalyst System
作者:Yasuyoshi Sasaki、Hideki Kato、Akihiko Kudo
DOI:10.1021/ja400238r
日期:2013.4.10
affinity between photocatalysts and the Co-complex electron mediators was important. The photocatalytic activity depended on pH. Neutral pH conditions gave the highest activity for overall water splitting. Overall water splitting by the present system steadily proceeded for a long time. The Z-scheme photocatalyst system was also confirmed to split water under sunlight irradiation at the rates depending
[Co(bpy)3](3+/2+) 和 [Co(phen)3](3+/2+) 氧化还原电对作为由 Ru/SrTiO3 组成的 Z 型光催化剂体系的电子介体发挥作用: Rh 和 BiVO4 粉末在可见光照射下用于整体水分解。这些电子介体仅对 SrTiO3:Rh 与 BiVO4 的组合有效。当使用释放 H2 的光催化剂的无掺杂 SrTiO3 和 TiO2 和释放 O2 的光催化剂的 WO3 时,它们不起作用。这些结果表明光催化剂和复合电子介体之间的亲和力很重要。光催化活性取决于pH。中性 pH 条件对整体水分解具有最高的活性。本系统的整体水分解在很长一段时间内稳定进行。Z-scheme光催化剂系统也被证实在阳光照射下以取决于天气的速率分解水。此外,Z-scheme 光催化剂系统与 Co-complex 电子介体使用反应池进行整体水分解,其中 Ru/SrTiO3:Rh 悬浮液通过膜过滤器从 BiVO4