A conductive polymer shell with electron collection behavior is constructed on an S. oneidensis MR-1/CdS inorganic–biohybrid photocatalytic system, which endows the engineered cells with the capability of excellent conductivity and broad visible-light absorption, and thus, the transport of photogenerated electrons at the biotic and abiotic interfaces is promoted, achieving efficient hydrogen production (23.18 μmol 10⁹ cells^–1 day^–1) for over 15 days compared with the traditional organic diffusion electron medium. A practical application was also conducted by using wastewater and natural sunlight for the hydrogen production, and 92.67 μmol of hydrogen was generated from the hybrid system within 7 days under wastewater and sunlight. This study contributes a new method for optimizing the interfacial electron transfer of inorganic–biohybrid systems for their application in the field of green energy production and provides insight into the rational design of the whole-cell biohybrid system with various production of valuable chemicals.

中文翻译：

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通过在生物非生物界面处优化电子传递，增强单个 S. oneidensis MR-1/CdS 生物杂交系统的光催化制氢


在 S. oneidensis MR-1/CdS 无机-生物杂交光催化系统上构建了具有电子收集行为的导电聚合物壳层，赋予工程细胞优异的导电性和广泛的可见光吸收能力，从而促进了光生电子在生物和非生物界面的传输，实现了高效的制氢（23.18 μmol 10⁹ 个细胞^–1 天^–1） 与传统的有机扩散电子介质相比，保存时间超过 15 天。还通过使用废水和自然阳光生产氢气进行了实际应用，在废水和阳光下，混合动力系统在 92.67 天内产生了 7 μmol 的氢气。本研究为优化无机-生物杂交系统的界面电子转移提供了一种新方法，用于绿色能源生产领域的应用，并为全细胞生物杂交系统与各种有价值化学品的生产提供了见解。