石墨烯修饰柔性电极的制备及其性能研究  

Preparation and Properties of Flexible Electrode Modified Grapheme

作　　者：刘学[1] 蔡昌凤[1] 丁佳炜 

机构地区：[1]安徽工程大学生物与化学工程学院,安徽芜湖241000

出　　处：《重庆理工大学学报（自然科学）》2017年第7期86-90,共5页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51274001);国家重点实验室开放课题基金资助项目(SKLCRSM10KFA05)

摘　　要：通过采用真空抽滤法制备石墨烯复合薄膜修饰碳片电极,用其制作的MFC来处理模拟酸性重金属矿井废水,并与纯碳片电极的MFC进行效果对比。结果表明,修饰的MFC稳定输出电压可达288 m V左右,比不修饰的提高了78.88%;阳极COD最大降解速率为260.99mg/(L·d),COD去除率比未修饰的提高了20.93%;阴极硫酸根平均降解速率为58.28 mg/(L·d),比修饰前提高了37.94%;一个周期后阴极出水p H值为7.28;对重金属去除明显高于修饰前的处理效果,总体去除速率高达1.894 9 kg/m3·d-1。结果表明石墨烯复合材料修饰后微生物燃料电池处理酸性矿井废水效果更佳,具有一定的应用前景。By using vacuum filtration, this paper prepared graphene composite film modified carbon electrode sheet, with its production of MFC to handle analog of acid mine drainage heavy metals and with the MFC pure carbon electrode sheet comparing outcomes. The results showed that the modified MFC stable output voltage of up to 288 mV, than non-modified increased 78.88% ; maximum anode COD degradation rate 260.99 mg/（ L · d）, COD removal efficiency than the unmodified increased 20.93% ; cathode sulfate modification improved 37. average degradation rate of 58.28 mg/（ L · d） , compared to the previous 94% ; after a period cathode effluent pH is 7.28 ; for heavy metal removal treatment effect is significantly higher than before modification, the overall removal rate of up to 1. 894 9 kg/mz · d-1. The results show that graphene composites modified microbial fuel cell acid mine drainage treatment better, with a certain application.

关 键 词：石墨烯 复合薄膜 微生物燃料电池 酸性矿井废水 

分 类 号：X703[环境科学与工程—环境工程]