Highly-efficient and eco-friendly materials and technologies are urgently needed to meet the requirements of nowadays green development. Photocatalysis with using solar energy and enzymatic catalysis with eco-friendly nature are effective alternatives to address the problem. Notably, beneficial use of the synergistic effect of artificial enzyme and advanced photocatalyst has attracted wide attention. This work presents a biomimetic photocatalytic material, two-dimensional (2D) biomimetic hemin-bismuth tungstate (HBWO). Stable HBWO composites formed by immobilization of monomeric hemin on 2D bismuth tungstate layer, exhibit high photocatalytic performance, better than that of pure 2D bismuth tungstate and unsupported hemin. HBWO shows layered structure with the interlayer spacing at ˜0.35 nm. In the photocatalytic process, hemin can not only act as an electron shuttle, also play an important role in oxygen transfer. Additionally, the synthesized HBWO composites exhibit nice binding affinities and high photocatalytic activity in tetracycline degradation. It is anticipated that beneficial use of synergistic effect of artificial enzyme and photocatalyst via HBWO composites can be a promising eco-friendly and efficient solution for addressing the environmental crisis.

迫切需要高效，环保的材料和技术来满足当今绿色发展的要求。利用太阳能进行光催化和具有环保性质的酶催化是解决该问题的有效替代方法。值得注意的是，对人工酶和先进光催化剂协同作用的有益利用已引起广泛关注。这项工作提出了一种仿生光催化材料，二维（2D）仿生血红素铋钨酸盐（HBWO）。通过将单体血红素固定在2D钨酸铋层上形成的稳定HBWO复合材料具有较高的光催化性能，优于纯2D钨酸铋和未负载的血红素。HBWO显示层间间隔为〜0.35nm的层状结构。在光催化过程中，血红素不仅可以起电子穿梭的作用，而且在氧的转移中也起着重要的作用。此外，合成的HBWO复合材料在四环素降解中表现出良好的结合亲和力和较高的光催化活性。预期通过HBWO复合材料有益地利用人工酶和光催化剂的协同作用可以成为解决环境危机的有希望的生态友好和有效的解决方案。