Effects of Co3O4 3 O 4 modified with MoS2 2 on microbial fuel cells performance

In this study, Co3O4@MoS2 3 O 4 @MoS 2 is prepared as anodic catalytic material for microbial fuel cells (MFCs). As the mass fraction of MoS2 2 is 20%, the best performance of Co3O4@MoS2 3 O 4 @MoS 2 composite catalytic material is achieved, and the addition of MoS2 2 enhances both the electrical conductivity and catalytic performance of the composite catalyst. Through the structural characterization of Co3O4@MoS2 3 O 4 @MoS 2 composite catalytic material, nanorod-like Co3O4 3 O 4 and lamellar MoS2 2 interweaved and stacked each other, and the agglomeration of Co3O4 3 O 4 is weakened. Among the four groups of single-chamber MFCs constructed, the Co3O4@MoS2-MFC 3 O 4 @MoS 2-MFC shows the best power production performance with a maximum stable output voltage of to 539 mV and a maximum power density of up to 2221 mW/m2. 2 . Additionally, the ammonia nitrogen removal rate of the MFCs loaded with catalysts is enhanced by about 10% compared with the blank carbon cloth MFC. Overall, the findings suggest that Co3O4@MoS2 3 O 4 @MoS 2 composite catalysts can significantly improve the performance of MFCs, making them more effective for both energy production and wastewater treatment.