Bimetallic catalytic materials coupled bioelectrochemical system for organic wastewater treatment
Bimetallic oxide Fe3O4/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 (NH4+ -N), and phosphorus ( P) pollutants from wastewater. The Fe3O4/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, NH4+ - N, and P, with removal efficiencies of 92. 15％,95. 46％, and 97. 77％, respectively. It was shown that the Fe3O4/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.
万方数据
维普
