Organic semiconductors are attractive photocatalysts, but their quantum yields are limited by the transfer of photogenerated charges to the surface. A promising strategy for low-loss charge transfer is to shorten the distance from the bulk exciton coupling region to the catalyst surface. Here we employ the hydrogen-bonded organic framework 1,3,6,8-tetrakis(p-benzoic acid)pyrene (HOF-H₄TBAPy) with hydrophilic one-dimensional micropore channels as a proof of concept for this approach. Under irradiation, photogenerated excitons rapidly transfer to the inner surface of adjacent micropores, engendering a mere 1.88 nm transfer route, thus significantly improving exciton utilization. When the micropore channel length does not exceed 0.59 μm, the sacrificial photocatalytic H₂ evolution rate of HOF-H₄TBAPy reaches 358 mmol h⁻¹ g⁻¹ and the apparent quantum yield at 420 nm is 28.6%. We further demonstrated a stable 1.03 mol day⁻¹ m⁻² H₂ evolution on a 0.5 m² HOF-H₄TBAPy-loaded fibre under 1 Sun irradiation.

有机半导体是有吸引力的光催化剂，但它们的量子产率受到光生电荷向表面转移的限制。一种有前途的低损耗电荷转移策略是缩短体激子耦合区域到催化剂表面的距离。在这里，我们使用具有亲水性一维微孔通道的氢键有机骨架 1,3,6,8-四（对苯甲酸）芘 (HOF-H _{4 TBAPy) 作为该方法的概念证明。}在照射下，光生激子迅速转移到相邻微孔的内表面，产生仅1.88 nm的转移路径，从而显着提高激子利用率。当微孔通道长度不超过0.59 μm时，牺牲光催化H ₂HOF-H ₄ TBAPy的演化速率达到358 mmol h ^-1 g ^-1，420 nm处的表观量子产率为28.6%。^{我们进一步}证明了在 1 Sun 照射下，0.5 m 2 HOF-H 4 TBAPy 负载光纤上^稳定的1.03 _mol day -1 ^m -2 H _2演化。