Living intracellular inorganic-microorganism biohybrid system for efficient solar hydrogen generation

摘要

The thirsty demand for renewable, sustainable, and efficient hydrogen production has promoted the rapid development of advanced technologies, and whole-cell microorganism-based bio-logical hydrogen production is one of the most promising strate-gies. Herein, we demonstrate the solar-light-induced enhancement of biological hydrogen production on the typical non -photosyn-thetic and non-genetic engineered bacteria. Furthermore, an intra-cellular inorganic-biological hybrid system is proposed to improve the hydrogen generation rate. The formation of intrinsic inorganic -biological junctions facilitates photo-electron separation and trans-fer and thus reaches a high biohybrid hydrogen generation rate of 7,800 G 12 mmol g-1 h-1. Our work sheds light on the advantages of an intracellular inorganic-biological hybrid system by combining the light-harvesting capacity of inorganic materials with the meta-bolic power of microbes to produce biofuels and chemical com-pounds and indicates the promising potential for solar-to-chemical conversion in a desirable and selective manner with higher diversity and functionality.

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