| Energy is an important symbol of modern society and economic development.It is also the most important source of raw materials for the chemical and chemical industry.The continuous improvement of our society relies mainly on the supply of energy.However,some energy sources cannot be regenerated,and if they are over-exploited,they will be exhausted one day.In order to solve the problems of environmental pollution caused by excessive energy loss,the research and development of renewable resources are highly valued by researchers.Microbial fuel cell(MFC)is a new clean and environmentally friendly wastewater treatment technology that recovers electrical energy while degrading organic pollutants,and the recovered electrical energy can be reused.It can alleviate the problem of energy loss caused by the rapid development of society,and it can also be used for sewage treatment,which has unique environmental significance.Among them,the electrode material of MFC is the key to affect the power generation of the battery,and it is also the main content of the field at this stage.This article introduces MFC technology and improves the power generation capability of MFC by exploring new electrode materials.Firstly,graphite electrodes and catalytic electrodes were prepared and placed in MFC.The electrode materials were characterized by electrochemical tests such as LSV,power density curve and SEM and XRD.After experimental comparison of the two electrode materials,it can be seen from the LSV measurement that the catalytic electrode has a higher electricity production rate than the graphite electrode and has certain catalytic performance;The power density of the catalytic electrode can reach 285.5mW/m~2,which is 1.7 times that of the graphite electrode;in the SEM test,it can be intuitively seen that the surface of the graphite material is relatively flat and the void distribution is obvious,while the surface of the catalytic electrode is uneven,relatively rough,and the cluster phenomenon is more obvious,indicating that the material is PANI-doped.It is beneficial to the microbial membrane;it can be known from XRD test that the catalytic electrode is successfully prepared.The two electrodes have less impurities introduced during the preparation process,better crystallization degree,and the composite material has higher absorption strength;It is understood that the catalytic electrode has a specific surface area of 10.9524 cm~2/g,which is 2.5 times that of the graphite electrode.Due to the presence of the quinone structure configuration in the PANI,the anode conductivity is enhanced and the battery’s power generation performance is improved.The two electrodes were respectively applied to the treatment of simulated beer wastewater.According to the comparison of the measurement results,the maximum working voltage of the catalytic battery can reach 280mV,which is 1.5 times that of the graphite electrode,and the power is 23mW/m~2,which is 1.7 of the graphite electrode.The COD removal rate can reach 67.78%.Therefore,the catalytic electrode can improve the power generation capacity of the battery,and is expected to be applied to the actual treatment of beer wastewater. |
