Photoredox catalysis over semiconductors for light-driven hydrogen peroxide production

Xiangkang Zeng, Yue Liu, Xiaoyi Hu, Xiwang Zhang

Research output: Contribution to journalReview ArticleOtherpeer-review

163 Citations (Scopus)


Hydrogen peroxide (H2O2) is a commodity chemical applied in diverse products and industries. Nevertheless, its current industrial production process is not sustainable. Photoredox catalysis over semiconductors is a very promising and green process that can harness solar energy for the sustainable production of H2O2from just water (H2O) and oxygen (O2). From the viewpoint of photochemical reactions, this review presents the latest advances in light-driven H2O2production by three kinds of semiconductor materials,i.e., homogeneous photocatalysts, heterogeneous photocatalysts, and photoelectrochemical catalysts. Starting with a brief introduction to photocatalysis, it then presents the main pathways (oxygen reduction, water oxidation, and integrated dual-channel pathway) involved in light-driven H2O2generation. The latest photocatalysts for H2O2production are elucidated thereafter. Finally, an outlook on the most urgent challenges and corresponding unexplored research opportunities of light-driven H2O2production by semiconductors is provided. This review aims to provide in-depth insights and guidelines to stimulate the development of innovative semiconductor materials for sustainable H2O2productionviaphotoredox catalysis reactions.

Original languageEnglish
Pages (from-to)1466-1494
Number of pages29
JournalGreen Chemistry
Issue number4
Publication statusPublished - 26 Jan 2021

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