Recently, photosynthetic biohybrid systems are emerged as efficient catalytic materials having advantages of the light-harvesting ability of semiconductors and the catalytic efficiency of biological system. In this context, a stable visible light active Zn-metal organic framework (ZTC) functionalized with TiO₂ (ZTC@TiO₂) was synthesized, and synergistically integrated with an electroactive microbial (EAB) system for efficient CO₂ reduction under visible-light illumination. The resultant bio-hybrid shows remarkably higher CO₂ reduction under visible light irradiation as compared to independent ZTC@TiO₂ and microbe system. Under optimized condition, the bioinorganic hybrid (EAB-ZTC@TiO₂) shows a CO₂ conversion to acetic acid and methanol with a higher selectivity towards methanol. The improved photocatalytic CO₂ conversion and selectivity towards methanol is ascribed to a well-organized donor-acceptor interfacial charge transfer from ZTC@TiO₂ to a microbe, which effectively activates the Wood-Ljungdahl pathway of microbes, thereby improving the CO₂ reduction efficiency.

近年来，光合生物杂化系统作为一种高效的催化材料出现，具有半导体的光捕获能力和生物系统的催化效率的优点。在此背景下，合成了稳定的可见光活性锌金属有机骨架 (ZTC) 功能化的 TiO ₂ (ZTC@TiO ₂ )，并与电活性微生物 (EAB) 系统协同集成以在可见光下有效还原CO ₂照明。与独立的 ZTC@TiO ₂和微生物系统相比，所得生物杂化物在可见光照射下表现出显着更高的 CO ₂还原。在优化条件下，生物无机杂化物（EAB-ZTC@TiO ₂)显示了CO ₂向乙酸和甲醇的转化，对甲醇具有更高的选择性。改进的光催化 CO ₂转化率和对甲醇的选择性归因于从 ZTC@TiO ₂到微生物的有序供体-受体界面电荷转移，有效激活微生物的 Wood-Ljungdahl 途径，从而提高 CO ₂还原效率.