MFC-非均相Fenton法的甲基红脱色及产电性能研究  

Research on the decolorization of methyl red and bioelectricity generating capacity by a combined process,MFC and heterogeneous Fenton-like reaction

作　　者：彭宏[1] 刘维仪 黎嘉天 

机构地区：[1]四川农业大学资源环境学院,四川成都611130

出　　处：《工业水处理》2015年第4期36-40,共5页Industrial Water Treatment

摘　　要：提出了微生物燃料电池(MFC)-非均相Fenton法处理染料废水的新概念。在双室MFC碳纸阴极上添加石墨烯和Fe3O4纳米颗粒(质量比1∶1)复合物涂层,给阴极室曝气,在p H为中性条件下,阴极氧接受从阳极传递过来的电子原位生成H2O2,并与Fe3O4纳米颗粒发生非均相Fenton反应生成·OH,从而促进阴极室内甲基红溶液的脱色。实验结果表明,48 h内该方法对甲基红的脱色率达86.5%,同时MFC电压稳定保持在(0.238±0.007)V。实验过程中未检出Fe2+和Fe3+,说明未发生均相Fenton反应。The combined process,microbial fuel cell （MFC）-heterogeneous Fenton-like reaction as a new concept used for treating dye wastewater has been proposed. Grapheme and Fe3O4 nano-particles,whose mass ratio is 1∶1 should be smeared on the surface of carbon paper cathode in the dual-chamber MFC. As the aeration takes place in cathode chamber,the pH is under a neutral condition,cathode oxygen adopts the electrons transmitted from anode, H2O2 is in-situ produced and heterogeneous Fenton-like reaction is triggered with Fe3O4 nano-particles and produce hydroxyl radicals, facilitating the decolorization of methyl red. The experimental results show that the decolorization rate of methyl red can reach 86.5%and the MFC voltage is maintained at（0.238±0.007） V in 48 hours. Furthermore, ferrous and ferric iron have not been detected in experiments , indicating that homogenous Fenton reaction has not occurred.

关 键 词：石墨烯 FE3O4 微生物燃料电池 脱色 甲基红 

分 类 号：X703.1[环境科学与工程—环境工程]