A novel photoenzyme-coupled artificial catalytic system is fabricated by immobilizing horseradish peroxidase (HRP) on the Bi₂WO₆ hollow nanospheres via a facile electrostatic self-assembly process. The obtained Bi₂WO₆/HRP sample not only improves the visible light harvest ability but also promotes the high-efficiency separation of charge carriers. More importantly, the photogenerated electrons and produced H₂O₂ on Bi₂WO₆ directly take part in redox cycle reactions of HRP to induce photoenzyme synergic catalytic effect. In consequence, the degradation activity of Bi₂WO₆/HRP is significantly improved relative to Bi₂WO₆ and HRP for removing bisphenol A (BPA) under the visible light irradiation. This work launches a feasible design strategy for exploiting photoenzyme-coupled artificial catalytic system with special structure to degrade organic pollutants in water efficiently.

通过简单的静电自组装过程将辣根过氧化物酶 (HRP) 固定在 Bi ₂ WO ₆中空纳米球上，制备了一种新型光酶偶联人工催化系统。得到的Bi ₂ WO ₆ /HRP样品不仅提高了可见光捕获能力，而且促进了载流子的高效分离。更重要的是，Bi ₂ WO ₆上的光生电子和产生的H ₂ O ₂直接参与HRP的氧化还原循环反应，诱导光酶协同催化作用。因此，Bi ₂ WO的降解活性₆ /HRP相对于Bi ₂ WO ₆和HRP在可见光照射下去除双酚A(BPA)有显着提高。这项工作提出了一种可行的设计策略，利用具有特殊结构的光酶耦合人工催化系统有效降解水中的有机污染物。