Wang Xinyu, Zhang Boyang, Zhang Jicong, Jiang Xiaoyu, Liu Kaiwei, Wang Haifeng, Yuan Xinyi, Xu Haiyi, Zheng Yijun, Ma Guijun, Zhong Chao
Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
Sci Adv. 2024 Jun 14;10(24):eadn6211. doi: 10.1126/sciadv.adn6211. Epub 2024 Jun 12.
Semi-artificial Z-scheme systems offer promising potential toward efficient solar-to-chemical conversion, yet sustainable and stable designs are currently lacking. Here, we developed a sustainable hybrid Z-scheme system capable for visible light-driven overall water splitting by integrating the durability of inorganic photocatalysts with the interfacial adhesion and regenerative property of bacterial biofilms. The Z-scheme configuration is fabricated by drop casting a mixture of photocatalysts onto a glass plate, followed by the growth of biofilms for conformal conductive paste through oxidative polymerization of pyrrole molecules. Notably, the system exhibited scalability indicated by consistent catalytic efficiency across various sheet areas, resistance observed by remarkable maintaining of photocatalytic efficiency across a range of background pressures, and high stability as evidenced by minimal decay of photocatalytic efficiency after 100-hour reaction. Our work thus provides a promising avenue toward sustainable and high-efficiency artificial photosynthesis, contributing to the broader goal of sustainable energy solutions.
半人工Z型体系在高效太阳能到化学能转化方面展现出了广阔的潜力，但目前仍缺乏可持续且稳定的设计。在此，我们通过将无机光催化剂的耐久性与细菌生物膜的界面附着力和再生性能相结合，开发了一种能够进行可见光驱动全水分解的可持续混合Z型体系。通过将光催化剂混合物滴铸到玻璃板上，随后通过吡咯分子的氧化聚合生长用于保形导电浆料的生物膜，来构建Z型结构。值得注意的是，该体系具有可扩展性，表现为在不同的片材面积上具有一致的催化效率；具有抗性，在一系列背景压力下光催化效率显著保持；具有高稳定性，在100小时反应后光催化效率仅有微小衰减。因此，我们的工作为可持续且高效的人工光合作用提供了一条有前景的途径，有助于实现可持续能源解决方案这一更广泛的目标。
