Pan Zhiming, Zhang Guigang, Wang Xinchen
State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.
Angew Chem Int Ed Engl. 2019 May 20;58(21):7102-7106. doi: 10.1002/anie.201902634. Epub 2019 Apr 12.
The charge transfer between hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs) is the rate-determining step that controls the overall performance of a Z-scheme water-splitting system. Here, we carefully design reduced graphene oxide (RGO) nanosheets for use as solid-state mediators to accelerate the charge carrier transfer between HEPs (e.g., polymeric carbon nitride (PCN)) and OEPs (e.g., Fe O ), thus achieving efficient overall water splitting. The important role of RGO could also be further proven in other PCN-based Z-systems (BiVO /RGO/PCN and WO /RGO/PCN), illustrating the universality of this strategy.
析氢光催化剂（HEPs）与析氧光催化剂（OEPs）之间的电荷转移是控制Z型水分解系统整体性能的速率决定步骤。在此，我们精心设计了还原氧化石墨烯（RGO）纳米片用作固态介质，以加速HEPs（如聚合氮化碳（PCN））和OEPs（如FeO）之间的电荷载流子转移，从而实现高效的整体水分解。RGO的重要作用在其他基于PCN的Z系统（BiVO/RGO/PCN和WO/RGO/PCN）中也能得到进一步证明，这说明了该策略的普遍性。
