TiO₂/CdS composite photocathode improves the performance and degradation of wastewater in microbial fuel cells
Jingying Ma, Zhihao An, Wenwen Zhang, Jia Shen +2
AI summary
70% confidenceA TiO2/CdS composite photocathode was used in microbial fuel cells to improve dye decolourization and power production, with a maximum degradation of 98.25% and accelerated electron transfer process.
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Abstract
Abstract Optimization of dye decolourization for wastewater and power production are explored in dual‐chamber microbial fuel cells (MFCs) with TiO 2 /CdS photocathodes. The rapid reduction of azo dye methylene blue (MB) and power production were enhanced with TiO 2 /CdS photocathode under illumination. The analysis of electrochemical impedance spectra indicated that the photocatalysis of TiO 2 /CdS accelerated the electron transfer process of photoelectrode reduction. Moreover, the UV‐visible light spectrophotometer showed that the maximum degradation of the MFCs was 98.25%, which illustrated that MB may be cleaved by photoelectrons generated by light irradiation on the illuminated TiO 2 /CdS photocathode. Finally, the power production of MFCs in this work promoted reductive decolourization of the dye MB solution.
Key findings
- The TiO2/CdS photocathode enhanced the reduction of azo dye methylene blue (MB) and power production in dual-chamber microbial fuel cells.
- The photocatalysis of TiO2/CdS accelerated the electron transfer process of photoelectrode reduction.
- The maximum degradation of MB was 98.25%, indicating that MB may be cleaved by photoelectrons generated by light irradiation on the illuminated TiO2/CdS photocathode.
Keywords
Identifiers
- Journal
- Analytical Science Advances
- Year
- 2022