微生物燃料电池阳极制备和测试

Preparation and test of anode for microbial fuel cell

设计了一个由科研成果转化而来的本科综合实验。该实验用聚多巴胺包覆Ti_(3)C_(2)T_(x)纳米片提高其水氧稳定性和生物相容性,表征其显微形貌、组成和电化学性质。利用自来水厂污泥接种混合微生物,测试电池的输出电压、功率密度、化学需氧量和生物活性等。使用裸露碳布作为对照组,通过比较分析数据,探索阳极的设计规律,鼓励学生在实验中使用自制电池处理生活污水和工业污水。采取交叉互评方式,对学生实验成绩进行评定,激发学生的科研兴趣,培养学生的批判精神和解决实际问题的能力。

A comprehensive undergraduate experiment was designed based on the transformation of scientific research achievements.This experiment improved the water oxygen stability and biocompatibility of Ti_(3)C_(2)T_(x)nanosheets coated with polydopamine,and characterized their microstructure,composition,and electrochemical properties.Water plant sludge was used to inoculate mixed microorganisms,and the output voltage,power density,chemical oxygen demand and biological activity of the battery were tested.Using exposed carbon cloth as the control group,explore the design rules of anodes through comparative analysis of data,and encourage students to use self-made batteries to treat domestic and industrial wastewater in the experiment.Adopting a cross evaluation approach to evaluate students'experimental results,stimulating their interest in scientific research,cultivating their critical spirit and ability to solve practical problems.