<p>Solar-driven (or light-driven) production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) from water (H<sub>2</sub>O) and molecular oxygen (O<sub>2</sub>) has recently received increasing attention as a green and sustainable alternative to conventional methods. However, the field of photocatalytic H<sub>2</sub>O<sub>2</sub> production is still in its infancy, primarily because of limited H<sub>2</sub>O<sub>2</sub> production efficiency. Over the past few years, a wide range of inorganic, organic, and organic–inorganic hybrid photocatalysts have been developed via diverse synthetic and modification strategies to increase the H<sub>2</sub>O<sub>2</sub> yield. Among them, organic–inorganic hybrid photocatalysts have shown higher H<sub>2</sub>O<sub>2</sub> production performance than single-component systems; at the same time, the advancements and challenges of these hybrid systems have not been comprehensively reviewed. Therefore, this review summarizes the advantages/limitations, recent progress, and potential challenges of organic–inorganic hybrid photocatalysts for H<sub>2</sub>O<sub>2</sub> production. First, we elucidate the superiority of the photocatalytic H<sub>2</sub>O<sub>2</sub> production over the conventional anthraquinone oxidation process. Then, we summarize the advantages and limitations of inorganic, organic, and organic–inorganic hybrid photocatalysts and discuss in detail the design, synthetic strategies, and photochemical properties of organic–inorganic hybrid photocatalysts. Finally, this review outlines the challenges and outlook for future research in this emerging area.</p> Graphical Abstract <p></p>

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Organic–Inorganic Hybrid Photocatalysts for Solar-Driven H2O2 Production: A Review

  • Yaohua Wu,
  • Yihong Chen,
  • Zhanpeng Zhang,
  • Xianjiao Zhou,
  • Huazhe Wang,
  • Qinglian Wu,
  • Juanshan Du,
  • Wan-Qian Guo

摘要

Solar-driven (or light-driven) production of hydrogen peroxide (H2O2) from water (H2O) and molecular oxygen (O2) has recently received increasing attention as a green and sustainable alternative to conventional methods. However, the field of photocatalytic H2O2 production is still in its infancy, primarily because of limited H2O2 production efficiency. Over the past few years, a wide range of inorganic, organic, and organic–inorganic hybrid photocatalysts have been developed via diverse synthetic and modification strategies to increase the H2O2 yield. Among them, organic–inorganic hybrid photocatalysts have shown higher H2O2 production performance than single-component systems; at the same time, the advancements and challenges of these hybrid systems have not been comprehensively reviewed. Therefore, this review summarizes the advantages/limitations, recent progress, and potential challenges of organic–inorganic hybrid photocatalysts for H2O2 production. First, we elucidate the superiority of the photocatalytic H2O2 production over the conventional anthraquinone oxidation process. Then, we summarize the advantages and limitations of inorganic, organic, and organic–inorganic hybrid photocatalysts and discuss in detail the design, synthetic strategies, and photochemical properties of organic–inorganic hybrid photocatalysts. Finally, this review outlines the challenges and outlook for future research in this emerging area.

Graphical Abstract