Hydrogen peroxide (H₂O₂) is a valuable chemical for various industries, while the current H₂O₂ production still suffers from multistep reaction processes, large consumption of organic solvents and waste-intensive. The photo-oxidation of water coupled with photo-reduction of oxygen is the cheapest and cleanest pathway to produce H₂O₂. Herein, we demonstrated that ZIF-8/C₃N₄ composite, as an efficient dual-channel photocatalyst, can produce H₂O₂ under visible light (λ ≥ 420 nm) with high efficiency (2641 μmol h⁻¹ g⁻¹) at normal pressure and without any sacrificial agent. The apparent quantum efficiency (AQE) can be calculated to be 19.57 % at the wavelength of 420 nm. Notably, the concentration of H₂O₂ generated is up to 0.71 wt.% at 420 nm (10 mg catalyst with 15 mL O₂ saturated H₂O), which is very close to the concentration of industrial production (1 wt.%) by anthraquinone method. Our work may provide a ultra-green pathway for the photo-production of H₂O₂ to meet industrial requirement.

过氧化氢（H ₂ O ₂）是各种工业的有价值的化学物质，而当前的H ₂ O ₂生产仍遭受多步反应过程，有机溶剂的大量消耗和废物密集型的困扰。水的光氧化和氧的光还原是产生H ₂ O ₂的最便宜和最清洁的途径。在本文中，我们证明了ZIF-8 / C ₃ N ₄复合物作为一种有效的双通道光催化剂，可以在可见光（λ≥420 nm）下以高效率（2641μmolh ^-1  g ^-1）产生H ₂ O _2。），且无任何牺牲剂。表观量子效率（AQE）在420 nm的波长下可以计算为19.57％。值得注意的是，在420 nm处生成的H ₂ O ₂浓度最高为0.71 wt。％（10 mg催化剂，含15 mL O ₂饱和H ₂ O），非常接近工业生产的浓度（1 wt。％ ）用蒽醌法。我们的工作可能会为H ₂ O ₂的光生产提供一条超绿色的途径，以满足工业需求。