O2还原生物阴极电催化膜耦合反应器降低启动电压的研究  

An O2 Reducing Biocathode-electrocatalytic Membrane Coupling Reactor to Reduce Start-up Voltage

作　　者：原婷婷 刘梦心 杜漫漫 Yuan Tingting;Liu Mengxin;Du Manman(School of materials science and engineering,Tianjin Polytechnic University,Tianjin 300387,China;School of environmental science and engineering,Tianjin Polytechnic University,Tianjin 300387,China)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387 [2]天津工业大学环境科学与工程学院,天津300387

出　　处：《山东化工》2019年第10期140-141,共2页Shandong Chemical Industry

基　　金：天津工业大学分离膜与膜过程国家重点实验室自主课题(No.Z2-201542)

摘　　要：分别采用活性炭和石墨毡两种不同的碳材料作为阴极电极材料和微生物载体以构建O2还原生物阴极电催化膜耦合反应器。采用阴极电势、电流等电化学表征,证明石墨毡比活性炭更易形成生物阴极。对石墨毡生物阴极进行了16SrRNA微生物群落分析,证实了电化学活性微生物的存在。反应器启动成功后,电流密度从0增大到0.015mA/cm^2。与电催化膜反应器相比,其启动电压降低。Two different carbon materials,activated carbon and graphite felt,were used as cathode electrode materials and microbial carriers respectively to construct an O2 reducing biocathode-electrocatalytic membrane coupling reactor.Based on the electrochemical characterization of cathode potential and current,it is proved that the biocathode can be formed more easily in graphite felt than in activated carbon.In addition,16S rRNA microbial community analysis was carried out on the graphite felt biocathode,which confirmed the existence of electrochemically active microorganisms.After successful start-up of the reactor,the current density increased from 0 to 0.015 mA/cm^2,Compared with the electrocatalytic membrane reactor,the start-up voltage of the reactor reduced.

关 键 词：电催化膜反应器 氧还原 生物阴极 

分 类 号：X52[环境科学与工程—环境工程]