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天然金红石在400～700 nm可见光范围内表现出良好的光吸收特性并具有可见光催化活性。本研究利用双室反应器,将天然金红石可见光催化作用引入微生物原有的电子还原过程。利用电化学分析等手段,对天然金红石可见光催化条件下的还原反应进行研究。金红石光催化条件下,体系整体内阻下降23.5%,功率密度增加57.1%,体系反应效率得到提高;在（0.70±0.01）V（相对于饱和甘汞电极）处发生的微生物还原氧气的反应得以加强;同时反应极化内阻降低93.05%,表明在动力学层面上促进了原有反应的发生。研究证明,可见光下天然金红石的光催化作用强化了微生物对电子受体的还原能力。“,”Natural rutile exhibited good optical absorption and photoactivity in the range of visible light from 400 nm to 700 nm.This research united visible light photocatalysis of rutile and microbial reduction together with a dual-chamber reactor.Electrochemistry methods were used to analyze the reduction with a rutile-coated electrode under light condition.With natural rutile photocatalysis,system resistance decreased 23.5% and power density increased 57.1%,these confirmed the improvement of reaction efficiency.Microbial reduction of oxygen at 0.70±0.1 V（vs.SCE） was strengthened with rutile photocatalysis.And a 93.05% decrease of reaction polarization resistance showed the reduction was easier to occur in the kinetic level.The results proved that microbial reduction of electron acceptors was enhanced by rutile photocatalysis in visible light.