微生物燃料电池驱动的生物电子芬顿（BEF）工艺用于三苯基锡氯化物（TPTC）降解。
Bio-Electron-Fenton (BEF) process driven by microbial fuel cells for triphenyltin chloride (TPTC) degradation.
机构信息
College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 211816, China.
Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology, Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Science, Chengdu 610041, China.
出版信息
J Hazard Mater. 2017 Feb 15;324(Pt B):178-183. doi: 10.1016/j.jhazmat.2016.10.047. Epub 2016 Oct 21.
The intensive use of triphenyltin chloride (TPTC) has caused serious environmental pollution. In this study, an effective method for TPTC degradation was proposed based on the Bio-Electron-Fenton process in microbial fuel cells (MFCs). The maximum voltage of the MFC with graphite felt as electrode was 278.47% higher than that of carbon cloth. The electricity generated by MFC can be used for in situ generation of HO to a maximum of 135.96μmolL at the Fe@FeO/graphite felt composite cathode, which further reacted with leached Fe to produce hydroxyl radicals. While 100μmolL TPTC was added to the cathodic chamber, the degradation efficiency of TPTC reached 78.32±2.07%, with a rate of 0.775±0.021μmolLh. This Bio-Electron-Fenton driving TPTC degradation might involve in SnC bonds breaking and the main process is probably a stepwise dephenylation until the formation of inorganic tin and CO. This study provides an energy saving and efficient approach for TPTC degradation.
三苯基锡氯化物（TPTC）的大量使用造成了严重的环境污染。在这项研究中，提出了一种基于微生物燃料电池（MFC）中的生物电子芬顿工艺降解 TPTC 的有效方法。以石墨毡作为电极的 MFC 的最大电压比碳布高 278.47%。MFC 产生的电能可用于原位生成 HO，在 Fe@FeO/石墨毡复合阴极处最大生成 135.96μmolL，进一步与浸出的 Fe 反应生成羟基自由基。当向阴极室中加入 100μmolL 的 TPTC 时，TPTC 的降解效率达到 78.32±2.07%，降解速率为 0.775±0.021μmolLh。这种生物电子芬顿驱动的 TPTC 降解可能涉及 Sn-C 键的断裂，主要过程可能是逐步脱苯基化，直到形成无机锡和 CO。本研究为 TPTC 的降解提供了一种节能高效的方法。
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