Reactor for Photocatalytic Hydrogen Production from Water

Abstract Solar‐energy‐driven photocatalytic water (H 2 O) splitting converts solar energy into a high‐valuable chemical, i. e. hydrogen (H 2 ), and is thereby a promising technique for achieving a sustainable society. However, photocatalytic H 2 O splitting have not been applied at a scalable industrial level yet. In addition to photocatalyst, reactor is also a crucial factor affecting efficiency of photocatalytic H 2 O splitting. There are a large number of works focusing on photocatalytic H 2 O splitting, including both reviews and research works. However, the reported works on photocatalytic H 2 O splitting paid little attentions on reactor. Herein, we discuss recent progresses on reactor for photocatalytic H 2 O splitting, and highlight challenges for further studies. This is helpful for further improving efficiency of photocatalytic H 2 O splitting.