The photosynthetic activities of cyanobacteria have been employed in various energy related fields such as energy harvesting and water-splitting based energy conversion. However, the output powers obtained from the photo-bioelectrochemical cells have lower efficiency than those from other artificial materials. It is reported in this study that Synechococcus sp.-iron oxide nanoparticles (γ-Fe₂O₃ and Fe₃O₄)- neodymium iron boride magnet complexes enable great energy harvesting performance by both synergistic combination effect of the natural and artificial photocatalysts and formation of an effective electron transfer conduit to the electrode. A green LED bulb is turned on as the result of the energy harvesting. During the light illumination, electrons are transported through the electrode, yielding a peak power density of 0.806 and 0.534 W/m² for Synechococcus sp.-γ-Fe₂O₃- neodymium iron boride magnet and Synechococcus sp.-Fe₃O₄- neodymium iron boride magnet complexes, respectively. The difference in the power output arises from the distinct electrochemical interactions among the cell, iron oxide nanoparticles, and NdFeB depending on the type of the nanoparticles. The approach introduced in this study can boost solar energy harvesting remarkably by combining natural photocatalysts with artificial ones.

蓝细菌的光合作用已被用于各种与能源有关的领域，例如能量收集和基于水分解的能量转换。然而，从光生化电化学电池获得的输出功率比从其他人造材料获得的输出功率具有较低的效率。据报道在该研究结果表明聚球蓝细菌sp.-氧化铁纳米颗粒（γ-的Fe ₂ ö ₃和Fe ₃ ö ₄）-钕铁硼磁体复合物通过天然和人工光催化剂的协同组合作用以及形成到电极的有效电子传输导管，实现了出色的能量收集性能。能量收集的结果是绿色的LED灯泡点亮。在光照射，电子通过电极输送，得到0.806 0.534和瓦/米的峰值功率密度²为聚球蓝细菌sp.-γ-的Fe ₂ ö ₃ -钕铁硼化物磁体和聚球蓝细菌sp.-的Fe ₃ ö ₄-硼化钕铁磁体复合物。功率输出的差异是由电池，氧化铁纳米颗粒和NdFeB之间的独特电化学相互作用引起的，具体取决于纳米颗粒的类型。通过将天然光催化剂与人造光催化剂结合使用，本研究中引入的方法可以显着提高太阳能的收集。