双金属催化材料耦合生物电化学系统处理有机废水  

Bimetallic catalytic materials coupled bioelectrochemical system for organic wastewater treatment

作　　者：逯慧 Lu Hui(School of Environmental and Material Engineering,Yantai University,Yantai 264005,Shandong,China)

机构地区：[1]烟台大学环境与材料工程学院,山东烟台264005

出　　处：《工业催化》2024年第3期86-92,共7页Industrial Catalysis

摘　　要：采用电沉积合成法制备负载在镍泡沫(NF)上的双金属氧化物Fe_(3)O_(4)/CuO催化材料,将其应用于双室微生物燃料电池(MFC)的阴极,通过电化学去除废水中化学需氧量(COD)、氨氮(NH_(4)^(+)-N)和磷(P)污染物。通过电化学测试分析制备的Fe_(3)O_(4)/CuO-NF催化材料具有明显的氧化还原峰和更低的电荷转移电阻,表现出更高的催化活性。MFC系统运行期间最高输出电压达695 mV,最大输出功率密度达576 mW·m^(-2)。实验结果显示,镍泡沫基双金属催化材料耦合微生物燃料电池系统对COD、NH+4-N和P具有高效的降解性能,去除率分别为92.15%、95.46%和97.77%。研究表明,采用Fe 3 O 4/CuO-NF耦合MFC系统不仅具有良好的产电性能,在有机废水的处理中也表现优异,该方法更加经济、能耗低、效率高,应用前景广阔。Bimetallic oxide Fe_(3)O_(4)/CuO catalytic materials loaded on nickel foam(NF)were prepared by electrodeposition synthesis and applied to the cathode of a two-compartment microbial fuel cell(MFC)for the electrochemical removal of chemical oxygen demand(COD),ammonia-nitrogen(NH_(4)^(+)-N),and phosphorus(P)pollutants from wastewater.The Fe_(3)O_(4)/CuO-NF catalytic material prepared in this experiment was analyzed by electrochemical tests to have significant redox peaks and lower charge transfer resistance,showing higher catalytic activity.The maximum output voltage during the operation of the MFC system reaches 695 mV,and the maximum output power density reaches 576 mW·m^(-2).The experimental results show that the nickel foam-based bimetallic catalytic material coupled with microbial fuel cell system has efficient degradation performance for COD,NH_(4)^(+)-N,and P,with removal efficiencies of 92.15%,95.46%,and 97.77%,respectively.It was shown that the Fe 3 O 4/CuO-NF coupled MFC system not only has good performance in electricity production,but also excels in the treatment of organic wastewater.The method is more economical,lower energy consumption,higher efficiency,and has a promising application.

关 键 词：环境保护工程 微生物燃料电池 双金属催化剂 镍泡沫 电化学 有机废水 

分 类 号：X703[环境科学与工程—环境工程] TQ426.6[化学工程]