Poly(lactic) acid (PLA) is a promising material due to the complete biodegradability and environmental-friendly characteristics, but it is difficult to decompose by traditional anaerobic composting. Photosynthetic microbial fuel cells (MFC) are envisaged as a potential bioenergy harvesting techniques in recent years. In this work, the anaerobic biodegradation of PLA textiles for bioelectricity generation was explored in a dual chamber MFC devices using the hybrid anoxygenic photosynthetic bacteria (APB). The result showed that the surface of PLA textiles appeared the widespread damage by SEM micrographs observation, and the corresponding weight loss was 26.67%. The analysis of FT-IR suggested that the breakage process was a biochemical action due to the function of depolymerase. Meanwhile, a stable current density generation of 4.4 ± 0.2 mA/cm² (500 Ω external resistor) at PLA textiles concentration of 1 g/L was obtained under the shortage of other carbon sources. However, the microbial community structure was obvious difference before and after the test. Moreover, the exploration will provide more potential information for self-sustained bioelectricity generation of MFC.

聚乳酸（PLA）具有完全的生物降解性和环境友好特性，是一种很有前途的材料，但是传统的厌氧堆肥很难将其分解。近年来，光合微生物燃料电池（MFC）被认为是一种潜在的生物能源收集技术。在这项工作中，使用混合产氧光合细菌（APB）在双室MFC设备中探索了用于生物发电的PLA纺织品的厌氧生物降解。结果表明，经SEM观察，PLA织物表面出现了广泛的破坏，相应的失重率为26.67％。FT-IR分析表明，由于解聚酶的作用，断裂过程是一种生化作用。同时，稳定的电流密度产生为4.4±0.2 mA / cm在缺少其他碳源的情况下，在PLA纺织品浓度为1 g / L时获得了^2个（500Ω外部电阻）。然而，测试前后微生物群落结构存在明显差异。此外，该探索将为MFC的自持生物发电提供更多的潜在信息。