Direct Z-scheme organic/inorganic semiconductor hybrid is seldom reported for photocatalytic H₂ production from water splitting. Reported herein is a new type of organic/inorganic hybrid fabricated with modified conjugated polybenzothiadiazole (B-BT-1,4-E, noted as BE) flake and CdS nanorod. The internal Z-scheme electron transfer mechanism is evidenced by detecting the loading position of Pt through a in-situ photodeposition technique. It is found that the Z-scheme BE-CdS hybrid possesses broad visible/near-infrared (vis/NIR) light absorption region (400–700 nm) and rapid photogenerated e⁻/h⁺ separation rate. Photocatalytic performances reveal that the H₂ production rate of optimal cocatalyst-free BE-CdS hybrid is 8.3 and 23.3 times higher than that of CdS and BE respectively, and a high apparent quantum yield (AQY) of 7.5% at 420 nm is obtained over the hybrid catalyst. This work opens new opportunities for exploiting highly efficient solar water splitting performances.

很少有直接Z方案有机/无机半导体混合物用于水分解产生光催化H _2的报道。本文报道的是一种新型有机/无机杂化体，它是用改性的共轭聚苯并噻二唑（B-BT-1,4-E，标注为BE）薄片和CdS纳米棒制成的。内部Z方案电子转移机制通过通过原位光沉积技术检测Pt的负载位置来证明。据发现，Z-方案BE-硫化镉混合具有广泛的可见/近红外（VIS / NIR）光吸收区域（400-700纳米）和快速光生ë ^- / H ⁺的分离率。光催化性能表明H ₂最佳无助催化剂的BE-CdS杂化物的生产率分别是CdS和BE的8.3倍和23.3倍，并且在该杂化催化剂上在420 nm处获得了7.5％的高表观量子产率（AQY）。这项工作为开发高效的太阳能分水性能提供了新的机会。